Kitz Forum

Broadband Related => Broadband Hardware => Topic started by: GunJack on January 20, 2021, 10:24:48 PM

Title: VMG3925-B10C - Not Authenticating
Post by: GunJack on January 20, 2021, 10:24:48 PM
Ey up (again) gang....

I just picked up a VMG3925-B10C from https://www.ebay.co.uk/itm/ZYXEL-Wireless-AC-N-VDSL2-Gateway-Router-VMG3925-B10C-Gaming-Video-HD/274630722469  after some discussion on the other thread, but....

I can't get it to authenticate on my talktalk line. I even found a bod on the TT forums who gave his settings for that model, but nope, this one won't authenticate even with duplicating his settings. One thing that strikes me as a bit odd with it is that, out of the box and after a factory reset (after me messing around for a while attempting to get it to authenticate), is that is seems to have a plusnet-looking username pre-populated in the box..plusnet fw maybe??

So, any tips on setting it up on my line? I'm ex-tiscali so don't have a talktalk e-mail/username if that makes any difference. Also, bod on tt forum left username & pw blank on his, but the one I've got won't even try, just gives an error if the user/pw boxes left blank.

I've got a few days to try and get it running before I go back to seller for a refund, so if anyone can help please??
Title: Re: VMG3925-B10C - Not Authenticating
Post by: burakkucat on January 20, 2021, 10:58:45 PM
For your TT VDSL2 connection, have you tried GunJack as the username and dummy as the password?  :-\
Title: Re: VMG3925-B10C - Not Authenticating
Post by: meritez on January 20, 2021, 11:37:08 PM
Attached talk talk FTTC settings
Title: Re: VMG3925-B10C - Not Authenticating
Post by: meritez on January 20, 2021, 11:38:43 PM
For your TT VDSL2 connection, have you tried GunJack as the username and dummy as the password?  :-\

I usually put the phone number of the line in to get past thay
Title: Re: VMG3925-B10C - Not Authenticating
Post by: GunJack on January 21, 2021, 07:17:45 AM
For your TT VDSL2 connection, have you tried GunJack as the username and dummy as the password?  :-\

lol, Mr. B-cat I am certainly feeling a bit like that with it... been away from this stuff for too long and seem to have forgotten most of what I knew!!
Title: Re: VMG3925-B10C - Not Authenticating
Post by: GunJack on January 21, 2021, 07:20:56 AM
Attached talk talk FTTC settings

that looks exactly like what I found and tried, with no joy :(

I'll have a go with the phone number, see if that does it..... I would really like to get it going, especially as it syncs 7 meg more than the TT wifi hub....
Title: Re: VMG3925-B10C - Not Authenticating
Post by: tubaman on January 21, 2021, 07:48:23 AM
Can you post some screenshots of your config pages as that should help us diagnose the issue.
It's highly unlikely that it is physically faulty if it syncs with the line ok.
 :)
Title: Re: VMG3925-B10C - Not Authenticating
Post by: GunJack on January 21, 2021, 11:31:27 AM
Can you post some screenshots of your config pages as that should help us diagnose the issue.
It's highly unlikely that it is physically faulty if it syncs with the line ok.
 :)

I will do...limited with when I can get to try it, what with working from home, but will get them up soon  :thumbs:
Title: Re: VMG3925-B10C - Not Authenticating
Post by: broadstairs on January 21, 2021, 01:00:01 PM
Just in case it helps I have taken screenshots of my Broadband config screen on my VMG3925 using Talktalk, 3 images as I had to scroll down!

Stuart
Title: Re: VMG3925-B10C - Not Authenticating
Post by: meritez on January 21, 2021, 04:26:28 PM
@broadstairs what's that option 60 bit?
Title: Re: VMG3925-B10C - Not Authenticating
Post by: siofjofj on January 21, 2021, 05:26:15 PM
I'll have a go with the phone number, see if that does it..... I would really like to get it going, especially as it syncs 7 meg more than the TT wifi hub....
Something doesn't sound right here. As posted by meritez in the screenshot, TalkTalk use IPoE/DHCP on VDSL, not PPPoE. When you select IPoE on your Zyxel, the boxes for username and password should disappear since there can't be any authentication for a straight up IPoE connection (ignoring the Option 61 stuff Sky do). Are you sure you have IPoE selected?
Title: Re: VMG3925-B10C - Not Authenticating
Post by: RealAleMadrid on January 21, 2021, 07:18:58 PM
@Broadstairs I was also wondering what that DHCP Option 60 is. I googled a bit and found your thread on the TT forum, where there was a post where the TT network people said it shouldn't be necessary. It seems to be a Vendor ID check (i.e. the router connecting to the service) for DHCP so if you have Zyxel modem/router it can't be right. ??? Or perhaps TT just ignore it.
Title: Re: VMG3925-B10C - Not Authenticating
Post by: broadstairs on January 21, 2021, 10:54:37 PM
@Broadstairs I was also wondering what that DHCP Option 60 is. I googled a bit and found your thread on the TT forum, where there was a post where the TT network people said it shouldn't be necessary. It seems to be a Vendor ID check (i.e. the router connecting to the service) for DHCP so if you have Zyxel modem/router it can't be right. ??? Or perhaps TT just ignore it.

I can't remember why or when I put that in all I can say is my VMG3925 syncs and authenticates with no problem at all with ALL those settings as shown.

Stuart
Title: Re: VMG3925-B10C - Not Authenticating
Post by: GunJack on January 21, 2021, 11:04:44 PM
WooHoo!!! Mr broadstairs, you are a star Sir :) 

Those screenshots you posted did the trick, matched your settings including the DHCPC bit, and it's online :)

By the look of it, I may be on a different firmware to you, my GUI isn't as smooth and it's a bit clunky, also the 5GHz wifi seems a bit odd.

On the plus side, I've traded a couple of meg up for an extra 7 meg down compared to the TT Wifi Hub :)

...but if I can't get the 5GHz sorted, I might have to resort to the TT Hub as a wifi access point :(
Title: Re: VMG3925-B10C - Not Authenticating
Post by: tubaman on January 22, 2021, 07:49:17 AM
Great news on the sync front  :yay:

What's up with the 5GHz wifi - is it not visible or can't you connect to it?
 :)
Title: Re: VMG3925-B10C - Not Authenticating
Post by: broadstairs on January 22, 2021, 08:25:06 AM
I don't use mine for wifi, but that's to do with my house not the router. It worked well when I did use it prior to getting my mesh system.

So what's wrong with it?

Stuart
Title: Re: VMG3925-B10C - Not Authenticating
Post by: GunJack on January 22, 2021, 11:14:00 AM
Guys, the 5GHz wifi channel is there and available, but it's only single channel and so limited to (theoretical) 54Mb/s. The 2.4GHz is fine at 140Mb/s. I've been used to the TT Hub providing bonded(?) channels for 1400Mb/s on the 5GHz band, so maybe it's just that it's older and only uses single channel. If that's the case, so be it.....

p.s. Stuart, any comment on the fw version?
Title: Re: VMG3925-B10C - Not Authenticating
Post by: meritez on January 22, 2021, 11:29:32 AM
@GunJack:
https://www.broadbandbuyer.com/products/39774-zyxel-vmg3925-b10c-eu01v2f/
Key Features
5 GHz 11ac (3x3) WiFi 5 for smooth, optimised HD IPTV services everywhere.
Andrews & Arnold also state the same: https://support.aa.net.uk/Category:ZyXEL_VMG3925_B10C

what firmware are you on?
Title: Re: VMG3925-B10C - Not Authenticating
Post by: tubaman on January 22, 2021, 11:33:02 AM
Guys, the 5GHz wifi channel is there and available, but it's only single channel and so limited to (theoretical) 54Mb/s. The 2.4GHz is fine at 140Mb/s. I've been used to the TT Hub providing bonded(?) channels for 1400Mb/s on the 5GHz band, so maybe it's just that it's older and only uses single channel. If that's the case, so be it.....

p.s. Stuart, any comment on the fw version?
Are you sure it's not set to 802.11a only, as that would explain the 54Mbps top speed. Not sure where that setting is on your GUI but it's under 'Others' on the 5GHz wifi on my VMG8924.
It's definitely not a single channel only device.
 :)

Edited to add - I suspect setting it to 20 MHz channel width on the 5GHz side might do this too, as changing mine from 80MHz to 40MHz moves it from '802.11a/n/ac' to '802.11a/n' in the 'Others' tab' if that makes sense (haven't tried 20MHz to see what that does).
Title: Re: VMG3925-B10C - Not Authenticating
Post by: GunJack on January 22, 2021, 01:07:24 PM
thanks both...

I'm on V5.13(AAVF.13)J1 fw..I can't see what version is on that one linked to..

I'll have to have more of a delve into the UI and see what's there....
Title: Re: VMG3925-B10C - Not Authenticating
Post by: broadstairs on January 22, 2021, 02:58:10 PM
Yes the 5ghz  setting on the 3925 is on Wireless Others tab where you can set the mode.

Stuart
Title: Re: VMG3925-B10C - Not Authenticating
Post by: GunJack on January 23, 2021, 10:28:19 AM
Are you sure it's not set to 802.11a only, as that would explain the 54Mbps top speed. Not sure where that setting is on your GUI but it's under 'Others' on the 5GHz wifi on my VMG8924.
It's definitely not a single channel only device.
 :)

Edited to add - I suspect setting it to 20 MHz channel width on the 5GHz side might do this too, as changing mine from 80MHz to 40MHz moves it from '802.11a/n/ac' to '802.11a/n' in the 'Others' tab' if that makes sense (haven't tried 20MHz to see what that does).

found some similar settings, but when changing & applying those settings, the UI seems to be struggling to implement the changes and I've had to power off a couple of times...I did manage to get the 2.4 signal to go multi-channel, but so far not the 5 GHz :( having the opportunity to play is limited, but will keep plugging away :)

p.s. if anyone has any suggestions on which fw may work better, I'm all ears....

p.p.s. anyone know of a d/l link for the v14 linked to through the a&a page linked to earlier?
Title: Re: VMG3925-B10C - Not Authenticating
Post by: tubaman on January 23, 2021, 12:57:20 PM
If the GUI crashes, which is not unknown on ZyXEL routers, then wait a few seconds and manually refresh the page. You shouldn't need to reboot, at least I've never had to.
 :)
Title: Re: VMG3925-B10C - Not Authenticating
Post by: Alex Atkin UK on January 24, 2021, 06:49:56 PM
Generally a bad idea to enable wide channels on 2.4Ghz unless there are no other networks in range.  Too many routers ignore the rules on auto-disabling that function if it clashes with another network.
Title: Re: VMG3925-B10C - Not Authenticating
Post by: GunJack on January 25, 2021, 05:41:36 PM
Generally a bad idea to enable wide channels on 2.4Ghz unless there are no other networks in range.  Too many routers ignore the rules on auto-disabling that function if it clashes with another network.

Yes, I did it inadvertently, thought I was on the 5GHz settings....the UI is a drop-down choice between the two to alter settings, was on the wrong one  :lol:

...however, I couldn't get the 5GHz to do it, even though the 2.4 did!!!
Title: Re: VMG3925-B10C - Not Authenticating
Post by: GunJack on January 30, 2021, 07:06:45 AM
Guys - I still can't seem to get the 5GHz going properly, any advice on the settings needed? I've attached screenshots of the wifi config pages, what am I missing??? ANy ideas welcomed.....
Title: Re: VMG3925-B10C - Not Authenticating
Post by: tubaman on January 30, 2021, 08:48:54 AM
The settings look correct so it should work. I assume there's not another router in close proximity broadcasting on the same channel?
 :)
Title: Re: VMG3925-B10C - Not Authenticating
Post by: GunJack on January 31, 2021, 08:15:42 AM
The settings look correct so it should work. I assume there's not another router in close proximity broadcasting on the same channel?
 :)

yes, the bl00dy SkyQ box, that creates it's own 5GHz to connect the remote boxes to it :(  This was the source of the TT hub moving itself to ch.100 (my other thread about needing a new router) and away from all the client's wifi adapters...it's across chs 36-48..fixed

If I could get the Zyxel to operate on 52-64 that would be ideal.....
Title: Re: VMG3925-B10C - Not Authenticating
Post by: tubaman on January 31, 2021, 08:58:57 AM
yes, the bl00dy SkyQ box, that creates it's own 5GHz to connect the remote boxes to it :(  This was the source of the TT hub moving itself to ch.100 (my other thread about needing a new router) and away from all the client's wifi adapters...it's across chs 36-48..fixed

If I could get the Zyxel to operate on 52-64 that would be ideal.....

It looks like you've set the Zyxel to channel 52, so if that's still not working it might be because you have the sideband set to 'lower'. Try upper sideband setting to see if that makes a difference. It'd also be worth turning the Sky Q off for a bit just to confirm that it is that causing the problems.
 :)
Title: Re: VMG3925-B10C - Not Authenticating
Post by: GunJack on January 31, 2021, 10:45:25 AM
It looks like you've set the Zyxel to channel 52, so if that's still not working it might be because you have the sideband set to 'lower'. Try upper sideband setting to see if that makes a difference. It'd also be worth turning the Sky Q off for a bit just to confirm that it is that causing the problems.
 :)

Thanks, I'll give it a try when I get chance....(i.e. when the Holy Sky box can be safely turned off lol)
Title: Re: VMG3925-B10C - Not Authenticating
Post by: tubaman on January 31, 2021, 11:49:57 AM
Thanks, I'll give it a try when I get chance....(i.e. when the Holy Sky box can be safely turned off lol)
LOL
You can change the 8924 sideband setting as that'll only bin the 5GHz wifi for a few seconds while it swaps.
 :)
Title: Re: VMG3925-B10C - Not Authenticating
Post by: GunJack on February 01, 2021, 12:14:06 PM
LOL
You can change the 8924 sideband setting as that'll only bin the 5GHz wifi for a few seconds while it swaps.
 :)

yeah, I can do all the router settings, the 5GHz wifi swapping isn't the issue....it's being able to turn off the sky box to see any effect it's having. All I've tried so far has been with it on..hopefully Mrs.G-J and junior have early nights in sync soon!!
Title: Re: VMG3925-B10C - Not Authenticating
Post by: machare on February 14, 2021, 12:48:49 AM
I have been reading this thread because I have VMG3925-B10C configured to use 5GHz.  What I have found is that although Windows 10 itself displays the network and allows me to connect to it, W10 software called Acrylic Wifi which shows details of all local Wifi networks does not find the VMG3925-B10C  5GHz signal.  It does find the 5GHz signals from other Zyxel routers and BT/Plusnet routers.

Can anyone suggest any other free W10 or Android apps that might be better in this respect. 
Title: Re: VMG3925-B10C - Not Authenticating
Post by: hushcoden on February 14, 2021, 09:59:18 AM
Can anyone suggest any other free W10 or Android apps that might be better in this respect.
Try WifiInfoView (https://www.nirsoft.net/utils/wifi_information_view.html)
Title: Re: VMG3925-B10C - Not Authenticating
Post by: parkdale on February 14, 2021, 10:48:32 AM
For Android phones I use Wifi analyzer (open source no ad's), https://play.google.com/store/apps/details?id=com.vrem.wifianalyzer&hl=en beware of clones!
or Analiti gives more detail and other functions (contains ad's) https://play.google.com/store/apps/details?id=com.analiti.fastest.android&hl=en
 
Title: Re: VMG3925-B10C - Not Authenticating
Post by: machare on February 14, 2021, 10:55:29 AM
Thank you both for the suggestions. They both find the VMG3925-B10C 5GHz signal.
Title: Re: VMG3925-B10C - Not Authenticating
Post by: GunJack on February 14, 2021, 11:38:16 AM
I have been reading this thread because I have VMG3925-B10C configured to use 5GHz.  What I have found is that although Windows 10 itself displays the network and allows me to connect to it, W10 software called Acrylic Wifi which shows details of all local Wifi networks does not find the VMG3925-B10C  5GHz signal.  It does find the 5GHz signals from other Zyxel routers and BT/Plusnet routers.

Can anyone suggest any other free W10 or Android apps that might be better in this respect.

I use Acrylic, and it doesn't appear to be the software that can't see the Zyxel 5GHz signal - it depends what channel the 5GHz is using and whether the wifi adapter the pc/laptop/phone uses that you're running the software on.

This was partly the issue I was having with the TT Wifi Hub before I got the Zyxel....the TT router would jump up to ch.100 on 5GHz which all bar one device I've got in the house couldn't see or use as it is outside the capabilities of their wifi adapters...

p.s I still haven't managed to get the Zyxel 5GHz to operate on anything other than single-channel :'( , so any other ideas welcomed..
Title: Re: VMG3925-B10C - Not Authenticating
Post by: parkdale on February 14, 2021, 12:14:32 PM
Have you seen this https://mysupport.zyxel.com/hc/en-us/articles/360005558039--CPE-How-to-configure-the-Wi-Fi-settings-on-the-VMG-series for setting up both WiFi channels.
https://www.gadgetmypad.co.uk/sky-q-disable-wifi-and-use-ethernet-only/#:~:text=Disable%20SKY%20Q%20WiFi&text=-Press%20the%20%27Home%27%20button,-Press%20%27001%27.&text=Goto%20network%20and%20switch%20off%20both%20bands%20and%20confirm%20before%20exit.
Hope this helps :-\
Title: Re: VMG3925-B10C - Not Authenticating
Post by: GunJack on March 28, 2021, 11:14:34 AM
I know, I know......resurrecting a thread after a while, but.....

after working well for a couple of months, the Zyx has gone t*ts-up :(

first, it won't show the UI, so factory reset..

second, it won't accept changes to the settings so can't get it back online, so...

tried to upload different fw, but it gets so far and won't complete...

..any suggestions before I use it as a doorstop???????
Title: Re: VMG3925-B10C - Not Authenticating
Post by: meritez on March 28, 2021, 04:02:03 PM
Are you interested in connecting to it via serial cable?
Title: Re: VMG3925-B10C - Not Authenticating
Post by: GunJack on March 28, 2021, 05:10:45 PM
Are you interested in connecting to it via serial cable?

not really tbh, not got the kit, space or time... is that the only way??
Title: Re: VMG3925-B10C - Not Authenticating
Post by: meritez on March 28, 2021, 11:22:35 PM
not really tbh, not got the kit, space or time... is that the only way??

It's not the only way, just asking in case needed.

Which firmware version are you using?

If you're having issues with getting firmware upgrade to complete, I have found telnet and disabling the model check and firmware check helps:

Quote
To downgrade first give these commands from telnet or ssh using the admin account:

zycli fwidcheck off
zycli modelcheck off

Then try to load the firmware.
Title: Re: VMG3925-B10C - Not Authenticating
Post by: GunJack on March 30, 2021, 09:47:34 PM
thanks for that, I'll have a bash (loooong time since I used telnet :( )

Currently on V5.13(AAVF13)J1 was trying 5.13(AAVF12)C0 which seemed to be the last one listed on the zyxel ftp site (found from other threads on here)..
Title: Re: VMG3925-B10C - Not Authenticating
Post by: tubaman on March 31, 2021, 08:09:27 AM
That 'J1' version of your firmware is an ISP special and will be why it won't let you load the standard version. The telnet commands that @meritez gave should allow you to load stock firmware.
A word of caution though, I tried this on a Post Office version and the firmware did upload but I ended up locked out (https://forum.kitz.co.uk/index.php/topic,25402.msg426223 and linked thread, also https://forum.kitz.co.uk/index.php/topic,24413 started by @quboid who had the same issue). The common ground in those threads is that the lockout happened following a factory reset, so that is best avoided if possible. I had to go the serial route to unlock it - which was actually a very interesting exercise.
Also note that there is a 5.13(AAVF13)C0 version available for the 3925-B10B which also works on the B10C you have.
 :)
Title: Re: VMG3925-B10C - Not Authenticating
Post by: GunJack on March 31, 2021, 09:38:47 AM
That 'J1' version of your firmware is an ISP special and will be why it won't let you load the standard version. The telnet commands that @meritez gave should allow you to load stock firmware.
A word of caution though, I tried this on a Post Office version and the firmware did upload but I ended up locked out (https://forum.kitz.co.uk/index.php/topic,25402.msg426223 and linked thread, also https://forum.kitz.co.uk/index.php/topic,24413 started by @quboid who had the same issue). The common ground in those threads is that the lockout happened following a factory reset, so that is best avoided if possible. I had to go the serial route to unlock it - which was actually a very interesting exercise.
Also note that there is a 5.13(AAVF13)C0 version available for the 3925-B10B which also works on the B10C you have.
 :)

That makes perfect sense - the config page came pre-filled with plusnet details....

..and thanks for the other info, I'll have to dust off my (limited) telnet knowledge and get cracking..

oh, and p.s. got a link for that F13 C0 fw please?
Title: Re: VMG3925-B10C - Not Authenticating
Post by: meritez on March 31, 2021, 02:31:02 PM
That makes perfect sense - the config page came pre-filled with plusnet details....

..and thanks for the other info, I'll have to dust off my (limited) telnet knowledge and get cracking..

oh, and p.s. got a link for that F13 C0 fw please?

@GunJack

ftp://ftp.zyxel.com/VMG3925-B10B/firmware/VMG3925-B10B_5.13(AAVF.13)C0.zip
Title: Re: VMG3925-B10C - Not Authenticating
Post by: GunJack on March 31, 2021, 04:40:53 PM
@GunJack

ftp://ftp.zyxel.com/VMG3925-B10B/firmware/VMG3925-B10B_5.13(AAVF.13)C0.zip

Thanks for that :)

However, since last post I got a bit of time to play, with mixed results...

A further factory reset has allowed me to change settings, and so the router is back up and running :)

...but telnet won't connect, tries to and then just shuts itself down - has the plusnet fw disabled telnet in the router maybe??

..answers on a post(card) please???


p.s. I'm wondering if the 5GHz narrow-band issue earlier in the thread could be 'coz of this fw also.....
Title: Re: VMG3925-B10C - Not Authenticating
Post by: tubaman on March 31, 2021, 05:13:49 PM
Thanks for that :)

...

...but telnet won't connect, tries to and then just shuts itself down - has the plusnet fw disabled telnet in the router maybe??

..answers on a post(card) please???

...

Is telnet enabled in the Maintenance>Remote MGMT menu?
Title: Re: VMG3925-B10C - Not Authenticating
Post by: GunJack on March 31, 2021, 09:44:19 PM
Is telnet enabled in the Maintenance>Remote MGMT menu?


..errrmm.......no  :-[

However - it is now!! and fw changed to 5.13(AAVF12)C0  ;D

I'll see how this goes before trying the VMG3925-B10B_5.13(AAVF.13)C0

thanks @meritez and @tubaman :)

p.s. the 5GHz still only operates on single-channel  :thumbdown:
Title: Re: VMG3925-B10C - Not Authenticating
Post by: tubaman on April 01, 2021, 08:16:48 AM
Well done! The 5GHz issue is bizarre, it's either faulty or it's detecting a channel conflict somewhere. Faulty seems unlikely as I'd have thought it'd not work at all.  :-\
Title: Re: VMG3925-B10C - Not Authenticating
Post by: meritez on April 01, 2021, 12:10:39 PM
@GunJack any chance you can post your current settings for your 5ghz?

I've just powered mine up, it has auto 100, 20/40/80mhz and I can connect at 866Mbps 5ghz from my phone, I do not have access to anything tri-band 5ghz at present

Title: Re: VMG3925-B10C - Not Authenticating
Post by: GunJack on April 01, 2021, 12:12:32 PM
@GunJack any chance you can post your current settings for your 5ghz?

I've just powered mine up, it has auto 100, 20/40/80mhz and I can connect at 866Mbps 5ghz from my phone, I do not have access to anything tri-band 5ghz at present

will do, gis a couple of mins....
Title: Re: VMG3925-B10C - Not Authenticating
Post by: GunJack on April 01, 2021, 12:22:15 PM
hope it's clear enough....
Title: Re: VMG3925-B10C - Not Authenticating
Post by: meritez on April 01, 2021, 12:57:35 PM
hope it's clear enough....

Yes, you are on a DFS channel, aka channel 52.
There's a detailed article here: http://wifinigel.blogspot.com/2018/05/the-5ghz-problem-for-wi-fi-networks-dfs.html
If that's tl;dr (too long didn't read) in the UK/EU, channels 36, 40, 44 and 48 are not subject to DFS.

Can you try channel 36 and let us know if that's any better, you may be experiencing False DFS Detection.

Title: Re: VMG3925-B10C - Not Authenticating
Post by: GunJack on April 01, 2021, 03:15:10 PM
Yes, you are on a DFS channel, aka channel 52.
There's a detailed article here: http://wifinigel.blogspot.com/2018/05/the-5ghz-problem-for-wi-fi-networks-dfs.html
If that's tl;dr (too long didn't read) in the UK/EU, channels 36, 40, 44 and 48 are not subject to DFS.

Can you try channel 36 and let us know if that's any better, you may be experiencing False DFS Detection.

interesting on a scan-read, that, will keep to look at properly..

I tried 36, still the same, single-channel only. I've got ours and next-door's skyQ boxes using 36-48, which is why I use 52 for 5GHz. I think there's summat wrong with the zyx's 5GHz, as my TT Hub will operate on multi-channel 5GHz, but overnight it keeps setting itself away from the Q boxes to a channel outside the capabilities of the wifi cards in all the devices in the house and when I was using that I had to reset it's channel every morning...
Title: Re: VMG3925-B10C - Not Authenticating
Post by: meritez on April 01, 2021, 03:44:19 PM
You definitely have congestion/interference locally if that's the case.

If you used something like https://play.google.com/store/apps/details?id=com.farproc.wifi.analyzer& it should show if the zyxel is using 20mhz or 40mhz or 80mhz of bandwidth
Title: Re: VMG3925-B10C - Not Authenticating
Post by: GunJack on April 01, 2021, 04:41:31 PM
I do, and that's exactly what it's showing ;)

my issue is, why won't it operate on multi-channel unless it's in some way borked. The TT hub works multi-channel alongside the Q box, another reason I'm thinking it's the zyx.

....the really annoying thing is that the 2.4GHz band will operate on multi-channel!!! as I did it by accident while trying to set up the 5GHz..
Title: Re: VMG3925-B10C - Not Authenticating
Post by: meritez on April 01, 2021, 04:56:50 PM
What's it showing, mine is showing 80mhz, channels 100 to 106

Title: Re: VMG3925-B10C - Not Authenticating
Post by: tubaman on April 02, 2021, 08:08:52 AM
I do, and that's exactly what it's showing ;)

my issue is, why won't it operate on multi-channel unless it's in some way borked. The TT hub works multi-channel alongside the Q box, another reason I'm thinking it's the zyx.

....the really annoying thing is that the 2.4GHz band will operate on multi-channel!!! as I did it by accident while trying to set up the 5GHz..

It sounds like the TT hub is working under protest if it resets itself to a higher channel every night. I think the Zyxel is just being less accommodating and is flatly refusing to work on the lower channels in the congested environment. Do you not have a single device that can work in the channel 100 range as that would prove or disprove the point?
 :)
Title: Re: VMG3925-B10C - Not Authenticating
Post by: GunJack on April 02, 2021, 11:04:39 AM
It sounds like the TT hub is working under protest if it resets itself to a higher channel every night. I think the Zyxel is just being less accommodating and is flatly refusing to work on the lower channels in the congested environment. Do you not have a single device that can work in the channel 100 range as that would prove or disprove the point?
 :)

unfortunately not at the moment...and the sky recording planner's too chocker to easily unplug the Q box.... this will take some planning...
Title: Re: VMG3925-B10C - Not Authenticating
Post by: banger on April 02, 2021, 04:28:44 PM
It sounds like the TT hub is working under protest if it resets itself to a higher channel every night. I think the Zyxel is just being less accommodating and is flatly refusing to work on the lower channels in the congested environment. Do you not have a single device that can work in the channel 100 range as that would prove or disprove the point?
 :)

The TT hub does this, that's why I stopped using it. It's a firmware problem. You can set it to a manual channel and it will still change.
Title: Re: VMG3925-B10C - Not Authenticating
Post by: GunJack on April 03, 2021, 07:33:42 AM
I think I'm going to have to give up with the 5GHz, and just accept single-channel operation... even with our Q and miniboxes powered off there's still next door's operating across the lower channels :(

However, the stock fw in the zyx appears more stable than the plusnet version it shipped with, and still syncs so much faster than the TT hub, so I'm still overall winning :)

Thanks again to all who've helped out on this :)
Title: Re: VMG3925-B10C - Not Authenticating
Post by: meritez on April 10, 2021, 10:11:58 AM
Finally got round to testing the triband 5ghz, I have one device syncing with a wireless throughput of 1170, on the last ever firmware for the vmg3925.
Title: Re: VMG3925-B10C - Not Authenticating
Post by: GunJack on April 27, 2021, 09:04:08 AM
Finally got round to testing the triband 5ghz, I have one device syncing with a wireless throughput of 1170, on the last ever firmware for the vmg3925.

just out of interest, which version is that and where can it be downloaded from please? TIA
Title: Re: VMG3925-B10C - Not Authenticating
Post by: meritez on April 27, 2021, 07:29:50 PM
just out of interest, which version is that and where can it be downloaded from please? TIA

V5.13 / (AAVF.17)C0 is what I'm currently running.

I also have V5.13 / (AAVF.14)C0 but the last publicly available is V5.13 / (AAVF.13)C0.



Title: Re: VMG3925-B10C - Not Authenticating
Post by: GunJack on April 30, 2021, 02:44:43 PM
thanks for that :)
Title: Re: VMG3925-B10C - Not Authenticating
Post by: GunJack on May 08, 2021, 11:53:39 AM
V5.13 / (AAVF.17)C0 is what I'm currently running.

I also have V5.13 / (AAVF.14)C0 but the last publicly available is V5.13 / (AAVF.13)C0.

I've popped 17 on there, looking ok :)  5GHz still only single-channel, but wasn't expecting it to be otherwise...if 17 is stable I'll leave it on.
Title: Re: VMG3925-B10C - Not Authenticating
Post by: meritez on May 08, 2021, 12:46:13 PM
17 is stable, new kernel of 4.1 compared to 3.4.11.

Title: Re: VMG3925-B10C - Not Authenticating
Post by: meritez on June 02, 2021, 12:23:19 PM
WLAN Station Status            
WLAN Station Status lists associated WiFi clients.
WLAN 2.4G Station Status            
#   Rate (Mbps)   RSSI (dBm)   SNR   Level
1   24   -51   36   4
2   72.222   -51   36   4
3   72.222   -51   36   4
WLAN 5G Station Status            
#   Rate (Mbps)   RSSI (dBm)   SNR   Level
1   300   -57   30   4
2   390   -45   42   5
3   433.333   -42   45   5
4   866.667   -52   35   4
5   390   -59   28   4
6   780   -59   28   4
7   866.667   -52   35   4

This does not make sense, I have 2.4ghz set to 802.11n-only and 5ghz set to 802.11ac-only.
Yet WiFI4 devices that support 5ghz Wireless N aka 802.11n-only are appearing as 5ghz clients.  :-\
Title: Re: VMG3925-B10C - Not Authenticating
Post by: GunJack on July 15, 2021, 09:50:24 AM
Well, after 3 months of rock-solid performing, the UI has decided to just not work  >:(

Looks like a reset is in order (again.....), and if needs be re-flash V5.13 / (AAVF.17)C0 .... Bah!!
Title: Re: VMG3925-B10C - Not Authenticating
Post by: GunJack on July 15, 2021, 09:56:46 AM
Phew!! luckily it was a browser issue, not the UI.....
Title: Re: VMG3925-B10C - Not Authenticating
Post by: Nukai on July 16, 2021, 05:58:47 PM
That 'J1' version of your firmware is an ISP special and will be why it won't let you load the standard version. The telnet commands that @meritez gave should allow you to load stock firmware.
A word of caution though, I tried this on a Post Office version and the firmware did upload but I ended up locked out (https://forum.kitz.co.uk/index.php/topic,25402.msg426223 and linked thread, also https://forum.kitz.co.uk/index.php/topic,24413 started by @quboid who had the same issue). The common ground in those threads is that the lockout happened following a factory reset, so that is best avoided if possible. I had to go the serial route to unlock it - which was actually a very interesting exercise.
Also note that there is a 5.13(AAVF13)C0 version available for the 3925-B10B which also works on the B10C you have.
 :)
The telnet trick worked for the John Lewis version of B10C. Loaded F13 then upgraded to F17 provided by Zyxel https://www.dropbox.com/s/sfz3vae33uujilf/V513AAVF17C0.bin?dl=1
Title: Re: VMG3925-B10C - Not Authenticating
Post by: meritez on July 16, 2021, 06:10:20 PM
The telnet trick worked for the John Lewis version of B10C. Loaded F13 then upgraded to F17 provided by Zyxel https://www.dropbox.com/s/sfz3vae33uujilf/V513AAVF17C0.bin?dl=1

@Nukai, welcome to Kitz forum, my vmg3925 that were John Lewis branded were easy to unlock etc.

The post office branded ones are very different, from the custom postoffice branded housing, to the 1234 password on the back of the router, as soon as you properly debrand there is no visual clue of what the admin or supervisor passwords are.

It's probably in the config.json file via FTP, may look at later.
Title: Re: VMG3925-B10C - Not Authenticating
Post by: meritez on December 21, 2021, 09:28:37 AM
thanks both...

I'm on V5.13(AAVF.13)J1 fw..I can't see what version is on that one linked to..

I'll have to have more of a delve into the UI and see what's there....

John Lewis, from what I worked out of the one I used yesterday.