Kitz Forum

Broadband Related => Broadband Hardware => Topic started by: Geekofbroadband on February 21, 2016, 07:16:08 PM

Title: Nighthawk® X4S D7800 VDSL/ADSL Modem Router
Post by: Geekofbroadband on February 21, 2016, 07:16:08 PM
Though I would start a page about this seeing as I couldn't find one. Anyway I have tried several modems/routers on my line and it defiantly seems that Lantiq chipsets are just overall better and I want to stay away from the openreach modems so my only option is all in one modem/routers with Lantiq chipsets and the one that seemed to be the best overall all is the D7800. Will this model be future proof as in G.INP, G.FAST etc... ;D
Title: Re: Nighthawk® X4S D7800 VDSL/ADSL Modem Router
Post by: Dray on February 21, 2016, 07:58:58 PM
Two things. I think the chipset is Qualcomm Atheros and Lantiq is owned by Intel. But the SoC incorporates the Lantiq VR10 for the modem part.
Title: Re: Nighthawk® X4S D7800 VDSL/ADSL Modem Router
Post by: kitz on February 21, 2016, 08:18:07 PM
Quote
Though I would start a page about this seeing as I couldn't find one.

Cheers, linked to here from the combined vdsl modem/router (http://forum.kitz.co.uk/index.php?action=post;msg=269710;topic=14436.0) post.
Title: Re: Nighthawk® X4S D7800 VDSL/ADSL Modem Router
Post by: Geekofbroadband on February 21, 2016, 10:15:08 PM
I guess theres 2 options if I did get the openreach modem:

Option 1: Just buy the D7800 modem/routers for £260 and hope the modem is better than the ECI modem or at least the same

Option 2: Use the ECI modem along with the R7800 £230 which runs at 1.7Ghz which would actually be cheaper if the modem wasn't anymore than £30

Then I guess it comes down to what do you prefer, all in one or separate modem and router  :P Would the D7800's modem run better then the ECI modem because of the newer chip or wouldn't it be noticeable...
Title: Re: Nighthawk® X4S D7800 VDSL/ADSL Modem Router
Post by: Geekofbroadband on May 11, 2016, 10:26:24 PM
Quote
Though I would start a page about this seeing as I couldn't find one.

Cheers, linked to here from the combined vdsl modem/router (http://forum.kitz.co.uk/index.php?action=post;msg=269710;topic=14436.0) post.

Kitz i'm not sure if the D7800 actaully has a Lantiq chipset unless anyone else is sure, I was asking around and some people seem to be saying yes and others no.

https://wikidevi.com/wiki/Netgear_D7800
Title: Re: Nighthawk® X4S D7800 VDSL/ADSL Modem Router
Post by: ejs on May 12, 2016, 05:11:20 AM
The Netgear D7800 uses Qualcomm Atheros chip(s) for the CPU, Ethernet, Wireless etc. and a Lantiq VRX-320 for the VDSL2 modem. Qualcomm do not have their own xDSL modem chips.

The TP-Link VR2600 has the same Qualcomm chip(s) for the CPU, Ethernet, Wireless etc. but contains a Broadcom DSL modem.
Title: Re: Nighthawk® X4S D7800 VDSL/ADSL Modem Router
Post by: Bully on September 28, 2016, 08:00:03 PM
Just bought one of these off eBay to replace the Asus DSL-AC68U that was letting me down (sent it back and got a full refund).

Well I'm impressed with the netgear, really easy to setup, connected to sky fibre with no issues.

I have just switched to BT Infinity 2 and also was easy to setup with no connection issues, no connection drop outs like the Asus had, good wifi speeds and coverage.  I did had an issue with IP address reservations, where by all my devices, even though they had reserved IP's were not getting the right IP address, I rolled the firmware back from v1.0.1.10 to v1.0.0.48 and this resolved the issue, this is a known issue on the Netgear forum.

I went for this particular Netgear model as it has a Lantiq dsl chip and I'm on a ECI cabinet which has the same chips in.
Title: Re: Nighthawk® X4S D7800 VDSL/ADSL Modem Router
Post by: burakkucat on September 28, 2016, 08:47:12 PM
I'm pleased to know that you have sourced a suitable replacement for that Asus device and that you are now having a good experience.
Title: Re: Nighthawk® X4S D7800 VDSL/ADSL Modem Router
Post by: NewtronStar on September 28, 2016, 09:28:14 PM
Have saw that Nighthawk modem/router while lurking in PC world for like £280 but my mind was saying will it work with DSLstats and does it ?
Title: Re: Nighthawk® X4S D7800 VDSL/ADSL Modem Router
Post by: ejs on September 29, 2016, 04:03:42 AM
Does it work with DSLstats? No, of course not.
Will it ever? That depends on the stats being available and someone writing the code to add it to a stats monitoring program.
Title: Re: Nighthawk® X4S D7800 VDSL/ADSL Modem Router
Post by: Bully on October 01, 2016, 01:39:09 PM
You can access telnet on this netgear via http://192.168.1.1/debug.htm
Title: Re: Nighthawk® X4S D7800 VDSL/ADSL Modem Router
Post by: Bully on October 02, 2016, 02:41:42 PM
I get an occasional internet disconnect and the modem does not seem to reconnect automatically and the only way to get it to reconnect i have to reboot modem/router, is this normal ?
Title: Re: Nighthawk® X4S D7800 VDSL/ADSL Modem Router
Post by: burakkucat on October 02, 2016, 04:49:38 PM
I get an occasional internet disconnect and the modem does not seem to reconnect automatically and the only way to get it to reconnect i have to reboot modem/router, is this normal ?

No, that is abnormal.

I presume the device is configured as "always on" (or some other such terminology) and the configuration is such that if there is a disconnection, a reconnection is then initiated?
Title: Re: Nighthawk® X4S D7800 VDSL/ADSL Modem Router
Post by: Bully on October 02, 2016, 05:53:32 PM
No, that is abnormal.

I presume the device is configured as "always on" (or some other such terminology) and the configuration is such that if there is a disconnection, a reconnection is then initiated?

It is set to always on.  Can't see anything about initiating reconnecting.
Title: Re: Nighthawk® X4S D7800 VDSL/ADSL Modem Router
Post by: burakkucat on October 02, 2016, 09:43:27 PM
It is set to always on.  Can't see anything about initiating reconnecting.

Right, understood. The former really implies the latter . . . or it certainly does, if I was writing the code.  :)

But that doesn't help to correct the problem you have noticed.  :(
Title: Re: Nighthawk® X4S D7800 VDSL/ADSL Modem Router
Post by: mjgr33n on October 03, 2016, 03:58:21 PM
I get an occasional internet disconnect and the modem does not seem to reconnect automatically and the only way to get it to reconnect i have to reboot modem/router, is this normal ?

The only possible thing that comes to mind is double check everything at your end first, for example wiring (are you using decent cable), the Master socket (are you using filter that came with router or even better are you using a BT MK3 face plate with NTE5A Master socket or even better the new BT MK4 face plate with new NTE5C Master socket combo). The ECI/Lantiq modems do seem to be more finicky, so I would make sure everything is perfect in terms of connectivity first.

Also if the above is right and you still have issues, do you still have issues when you connect the default modem/router combo given to you by ISP etc.
Title: Re: Nighthawk® X4S D7800 VDSL/ADSL Modem Router
Post by: Bully on October 03, 2016, 06:00:42 PM
Did not want to risk to much switching as only just got connected to infinity and my line is training
Title: Re: Nighthawk® X4S D7800 VDSL/ADSL Modem Router
Post by: burakkucat on October 03, 2016, 06:16:19 PM
There is no such thing as a "training period" for a G.993.2 (VDSL2) service. The DLM process monitors the circuit from the second day following service provision.
Title: Re: Nighthawk® X4S D7800 VDSL/ADSL Modem Router
Post by: Bully on October 03, 2016, 07:06:01 PM
Oh ok, BT quoted 3 days
Title: Re: Nighthawk® X4S D7800 VDSL/ADSL Modem Router
Post by: d2d4j on October 04, 2016, 09:23:24 AM
Hi

I hope I have posted correctly, sorry if not and please feel free to delete/move as needed

I received a pdf from a client today, where their FTTC on 40/10 (business) is going to be upgraded (was not requested by our client but sent through from BT), but I am posting here re DLM and training period.

I have to agree, I always believed there were no training involved in FTTC, but this letter states there is a 10 Days training, and best to  wait 10 Days before testing speed

I have put a box around the text to highlight it, and removed identifying information for our client.

Many thanks

John
Title: Re: Nighthawk® X4S D7800 VDSL/ADSL Modem Router
Post by: Dray on October 04, 2016, 09:32:19 AM
Where does it say "training"? I can see it says "settle down".
Title: Re: Nighthawk® X4S D7800 VDSL/ADSL Modem Router
Post by: d2d4j on October 04, 2016, 09:38:42 AM
Hi dray

Ahh, your correct, the term used is settle down

To my way of thinking, a 10 day settle down period is the same as a 10 day training period, unless anyone could let me know what the difference is between training and settle down periods are/involve

Especially when you consider dlm takes action on day 2 onwards

Many thanks

John
Title: Re: Nighthawk® X4S D7800 VDSL/ADSL Modem Router
Post by: Dray on October 04, 2016, 09:49:00 AM
As you know, there is no training period. One major difference with DLM is that DLM is always active from day 2 and can take action at any time based on errors and disconnections in the previous 24 hours. For example action on day 3, day 11, day 15, day 210, etc.
Title: Re: Nighthawk® X4S D7800 VDSL/ADSL Modem Router
Post by: d2d4j on October 04, 2016, 09:52:35 AM
Hi dray

Many thanks, yes I knew that but what is the difference between settle down time and training time

I'm sorry if this is obvious, but I cannot see any difference between the contextual meaning for broadband activation

Many thanks

John
Title: Re: Nighthawk® X4S D7800 VDSL/ADSL Modem Router
Post by: Dray on October 04, 2016, 10:28:43 AM
The basic difference is, the line doesn't take 10 days to settle down. It's meaningless.

The suspicion is that BT use it as an excuse to ignore problems for 10 days possibly to get round any consumer laws regarding cooling-off.
Title: Re: Nighthawk® X4S D7800 VDSL/ADSL Modem Router
Post by: Bully on October 15, 2016, 04:30:58 PM
Can't seem to find were I can add IPv6 dns settings, want to use googles IPv6 dns servers
Title: Re: Nighthawk® X4S D7800 VDSL/ADSL Modem Router
Post by: Geekofbroadband on November 01, 2016, 06:49:51 PM
New firmware out, 1.0.1.16 updates DSL driver.

Updated DSL driver to 07.08.01.05.00.07_07.08.00.09.00.01
Title: Re: Nighthawk® X4S D7800 VDSL/ADSL Modem Router
Post by: ejs on November 01, 2016, 06:51:27 PM
That's actually the DSL firmware version.
Title: Re: Nighthawk® X4S D7800 VDSL/ADSL Modem Router
Post by: Geekofbroadband on March 25, 2017, 12:10:16 AM
I picked up one of these for £160 new, going to test it on my line soon.

I'm returning the TP Link VR2600 as i found it to not be very good for me, I had weird issues, NAT wouldnt open on Xbox One at all, even after opening all the ports, I had voice issues on Discord, even though this was expected my download and upload synced around 3Mbs lower due to the different chipset. This was on the latest firmware/factory reset.
Title: Re: Nighthawk® X4S D7800 VDSL/ADSL Modem Router
Post by: Geekofbroadband on April 07, 2017, 12:01:22 AM
Ok I've used this modem/router for about a couple of days now and so far its been great, compared to the TP Link VR2600, theres no NAT issues at all with Xbox, my sync speed is about the same or higher than my previous Lantiq chipset router (Plusnet Hub One). So for any ECI users I would definitely recommend the D7800 over the VR2600 for sync speed and having no NAT issues (Which I couldn't fix at all on the VR2600). I believe these to devices have the same specs apart from the modem chips being different (D7800 = lantiq, VR2600 = broadcom) but I also found the wireless range to be a bit better on the D7800, could be due to the bigger antennas. From my testing firmware 1.0.1.16 is not stable on the modem side, I lost sync around 5am and my line was interleaved so I loaded the older 1.0.1.10 my line has been solid as a rock and im back on the fast path!   
Title: Re: Nighthawk® X4S D7800 VDSL/ADSL Modem Router
Post by: Charles on May 04, 2017, 01:22:11 PM
From my testing firmware 1.0.1.16 is not stable on the modem side, I lost sync around 5am and my line was interleaved so I loaded the older 1.0.1.10 my line has been solid as a rock and im back on the fast path!   

I'm seeing DSL dropouts almost daily on Sky Fibre with firmware 1.0.1.16. Before I try 1.0.1.10, how can I determine if my line is interleaved or on fast path? Is it shown on the router's web interface?

Thanks in advance
Title: Re: Nighthawk® X4S D7800 VDSL/ADSL Modem Router
Post by: skyeci on May 04, 2017, 08:58:14 PM
Can you post a screen shot perhaps from the modem info? alternately if you had a broadcom unlocked modem you could get more detailed stats. If the 7800 could be used as a router only you could have a seperate modem in front of it so you could monitor in more detail etc..

Title: Re: Nighthawk® X4S D7800 VDSL/ADSL Modem Router
Post by: Charles on July 01, 2017, 12:09:23 PM
@skyeci,

Thanks for your reply. It turned out that the D7800 does not provide detailed DSL stats. I found out that the line was connected to a Huawei cabinet, so I installed an unlocked HG612 which provided some useful stats and more importantly, the line is now completely stable with no dropouts. The mismatch of the flaky Lantiq chipset in the D7800 and the Broadcom chipset in the Huawei cabinet was likely to be the cause of the dropouts.

I returned the D7800 and bought the R7800 instead (the cheaper, router-only version of the 7800 series), made a little modification to add DHCP authentication for Sky, and now everything is working well with several weeks of stable uptime.

The R7800 has excellent third-party firmware options, whereas the D7800 has none.

Lessons learnt: Match chipsets and keep modem and router separate for best flexibility.
Title: Re: Nighthawk® X4S D7800 VDSL/ADSL Modem Router
Post by: skyeci on July 01, 2017, 12:30:02 PM
Good to hear its sorted. Are you uploading to mdws?
cheers
Title: Re: Nighthawk® X4S D7800 VDSL/ADSL Modem Router
Post by: Charles on July 01, 2017, 12:46:06 PM
Not currently, but at some point I will set up a Raspberry Pi to do it :)
Thanks again.