Kitz Forum

Broadband Related => ADSL Issues => Topic started by: noddy on July 22, 2021, 07:08:20 AM

Title: Effects of Ethernet
Post by: noddy on July 22, 2021, 07:08:20 AM
I was running DSLstats on the laptop ( wireless ) while checking behind my PC , which was off but plugged in to a socket thats switched off. When I removed the ethernet cable from the back of the PC CRC errors shot up SNR margin dropped , so plugged it back in everything returns to normal . Then as an experiment unplug the PC from the power socket and that shows CRC errors but not as dramatic , could this be an earthing problem ? or my old reliable Billion 7800N cheers
Title: Re: Effects of Ethernet
Post by: burakkucat on July 22, 2021, 02:13:22 PM
I think you need to perform one further experiment . . . and that is to disconnect the Ethernet cable (which runs to the switched off PC) from the Billion 7800N.

What do you now see, reported by DSLstats?
Title: Re: Effects of Ethernet
Post by: noddy on July 22, 2021, 05:22:42 PM
I think you need to perform one further experiment . . . and that is to disconnect the Ethernet cable (which runs to the switched off PC) from the Billion 7800N.

What do you now see, reported by DSLstats?
Good point , I'll try it in the morning cheers
Title: Re: Effects of Ethernet
Post by: noddy on July 23, 2021, 06:37:51 AM
Good point , I'll try it in the morning cheers
and here is the result  :no: , didn't leave it out too long as not sure how far SNR and CRC's were going to go .it's the spot just before 6.31
Title: Re: Effects of Ethernet
Post by: burakkucat on July 23, 2021, 09:58:50 AM
To me, all the results seem to be indicating a problem with the Billion 7800N.  :-\
Title: Re: Effects of Ethernet
Post by: noddy on July 23, 2021, 11:19:35 AM
Probably time to research alternatives  Zyxel ? although I always get confused which model would be best for ADSL2 longline
Title: Re: Effects of Ethernet
Post by: burakkucat on July 23, 2021, 11:57:35 AM
The ZyXEL model I would normally suggest (VMG1312-B10A) is no longer manufactured and is becoming difficult to find in a good second-hand condition, at a reasonable price.

Perhaps other members will be able to make recommendations?
Title: Re: Effects of Ethernet
Post by: jelv on July 23, 2021, 01:53:54 PM
(VMG1312-B10A) is no longer manufactured and is becoming difficult to find in a good second-hand condition, at a reasonable price.

@noddy If you are inclined to the above, make me an offer - I've just dug one out of my cupboard.
Title: Re: Effects of Ethernet
Post by: noddy on July 23, 2021, 02:04:08 PM
@noddy If you are inclined to the above, make me an offer - I've just dug one out of my cupboard.
Tempting ;) give me an idea what you're after
Title: Re: Effects of Ethernet
Post by: tickmike on July 23, 2021, 09:38:13 PM
My ADSL2 line is 4.8kl and I use a HG612
Title: Re: Effects of Ethernet
Post by: noddy on July 24, 2021, 06:26:54 AM
My ADSL2 line is 4.8kl and I use a HG612
I'd assumed ( obviously wrong ) the HG612 was a VDSL modem ?
Title: Re: Effects of Ethernet
Post by: roseway on July 24, 2021, 06:37:53 AM
The HG612 was an ADSL/VDSL modem/router with two ethernet ports and no WiFi. It was originally used in the UK as a VDSL2 bridge modem, but it also performed well as an ADSL modem/router. It didn't have enough power for practical use as a VDSL2 modem/router, although it did work in that role.
Title: Re: Effects of Ethernet
Post by: noddy on July 24, 2021, 09:35:57 AM
The HG612 was an ADSL/VDSL modem/router with two ethernet ports and no WiFi. It was originally used in the UK as a VDSL2 bridge modem, but it also performed well as an ADSL modem/router. It didn't have enough power for practical use as a VDSL2 modem/router, although it did work in that role.
I see :) . I was hoping to stay with a one box option as the router runs from a UPS ( because of all the power cuts we have  :( ) I'll keep researching  :fingers:
Title: Re: Effects of Ethernet
Post by: noddy on July 25, 2021, 09:12:39 AM
could I ask is the wifi on the Zyxel any good ?
Title: Re: Effects of Ethernet
Post by: RealAleMadrid on July 25, 2021, 08:27:42 PM
The VMG1312-B10A only has 2.4Ghz wireless, you would be better off with the VMG8924-B10A which is dual band 2.4Ghz and 5GHz. I have used this device and it works very well although I have used it in modem mode also providing the wi-fi connection but with a separate router. It would be fine as a single box solution.
Title: Re: Effects of Ethernet
Post by: noddy on July 26, 2021, 06:15:18 AM
The VMG1312-B10A only has 2.4Ghz wireless, you would be better off with the VMG8924-B10A which is dual band 2.4Ghz and 5GHz. I have used this device and it works very well although I have used it in modem mode also providing the wi-fi connection but with a separate router. It would be fine as a single box solution.
Cheers , is the VMG8924-B10A suitable for long lines ( attn 58 ) ?
Title: Re: Effects of Ethernet
Post by: RealAleMadrid on July 26, 2021, 08:57:17 AM
I can't really answer that, never used it on a long line ADSL service but is has a good Broadcom modem chipset with a common mode noise rejection filter on the line input so it should be OK. :)
Title: Re: Effects of Ethernet
Post by: noddy on July 29, 2021, 10:31:25 AM
I think I'm going to give the VMG8924-B10A a try  :fingers: I've seen a couple for sale is it likely they would be locked to a provider ? and if so are they easy / safe to unlock ? cheers
Title: Re: Effects of Ethernet
Post by: aesmith on September 10, 2021, 02:40:51 PM
Cheers , is the VMG8924-B10A suitable for long lines ( attn 58 ) ?
That's what I have on my line which is 53dB according to the Zyxel (Billion made it 55dB and Thomson said 57dB so it depends on who you ask).
Title: Re: Effects of Ethernet
Post by: Weaver on October 01, 2021, 08:13:14 AM
I believe it may have the same quality chipset as my own VMG1312-B10A devices. These are used on extreme length copper ADSL2 lines successfully, > 7km.

I would definitely give them a try. I’m sure someone will be able to help you with unlocking.
Title: Re: Effects of Ethernet
Post by: noddy on October 02, 2021, 06:41:54 AM
I believe it may have the same quality chipset as my own VMG1312-B10A devices. These are used on extreme length copper ADSL2 lines successfully, > 7km.

I would definitely give them a try. I’m sure someone will be able to help you with unlocking.
I've got one to try now ( John Lewis ) but it seems to be allowing me to but BT login in so going to give it a go first ( before I break it  ;) trying to unlock it )
Title: Re: Effects of Ethernet
Post by: aesmith on October 02, 2021, 10:50:25 AM
Mine was ex-John Lewis but I couldn't find any indication of customisation other a Welcome to John Lewis leaflet in the box. Certainly no problem configuring it for A&A, nor installing normal factory firmware upgrades.
Title: Re: Effects of Ethernet
Post by: noddy on October 02, 2021, 12:58:27 PM
Mine was ex-John Lewis but I couldn't find any indication of customisation other a Welcome to John Lewis leaflet in the box. Certainly no problem configuring it for A&A, nor installing normal factory firmware upgrades.
Cheers , did you manage to disable TR069 ?
Title: Re: Effects of Ethernet
Post by: tubaman on October 02, 2021, 01:28:24 PM
Cheers , did you manage to disable TR069 ?
You'll need to get the supervisor password to do that. Depending on what firmware you are running you can get it in telnet via the dumpmdm command - https://forum.kitz.co.uk/index.php/topic,19186.105.html
You should be able to downgrade to an earlier version if your one doesn't support dumpmdm.
 :)
Title: Re: Effects of Ethernet
Post by: aesmith on October 02, 2021, 01:38:37 PM
Cheers , did you manage to disable TR069 ?
I don't remember doing so, but if it's still enabled it clearly hasn't been a problem.
Title: Re: Effects of Ethernet
Post by: noddy on October 02, 2021, 01:59:51 PM
I don't remember doing so, but if it's still enabled it clearly hasn't been a problem.
:)
Title: Re: Effects of Ethernet
Post by: noddy on October 02, 2021, 02:01:52 PM
You'll need to get the supervisor password to do that. Depending on what firmware you are running you can get it in telnet via the dumpmdm command - https://forum.kitz.co.uk/index.php/topic,19186.105.html
You should be able to downgrade to an earlier version if your one doesn't support dumpmdm.
 :)
Thanks I'll see if I'm capable  :fingers: after trying it unmolested  ;)
Title: Re: Effects of Ethernet
Post by: noddy on October 03, 2021, 07:40:16 AM
trying telnet to get supervisor password but keep getting the same response ?
"  telnetd:error:304.409:processInput:599:unrecognized command dumpmdm " any ideas what I'm doing wrong ?  :no:
Title: Re: Effects of Ethernet
Post by: tubaman on October 03, 2021, 09:12:51 AM
trying telnet to get supervisor password but keep getting the same response ?
"  telnetd:error:304.409:processInput:599:unrecognized command dumpmdm " any ideas what I'm doing wrong ?  :no:

I expect you are running one of the later firmware versions that no longer support dumpmdm as the admin user (V28 certainly doesn't). You'll need to install an earlier version as per my link from yesterday.  I agree with @aesmith comment and doubt it'll cause any issues in normal use.
 :)
Title: Re: Effects of Ethernet
Post by: noddy on October 03, 2021, 09:52:42 AM
I expect you are running one of the later firmware versions that no longer support dumpmdm as the admin user (V28 certainly doesn't). You'll need to install an earlier version as per my link from yesterday.  I agree with @aesmith comment and doubt it'll cause any issues in normal use.
 :)
the firmware is 1.00(AAKL.24)CO , but yes I'm just going to leave it be and see how it goes  :) ( if it ain't broke don't fix it  ;) ) Thanks for the help
Title: Re: Effects of Ethernet
Post by: aesmith on October 03, 2021, 05:17:16 PM
Mine is running 1.00(AAKL.28)C0 and it doesn't have that dumpmdm either.  I vaguely recall trying to find a root or supervisor login when I first got the router, but not making any progress, and it seems to work fine as it is with the normal administrator level login.
Title: Re: Effects of Ethernet
Post by: noddy on October 03, 2021, 05:42:15 PM
Mine is running 1.00(AAKL.28)C0 and it doesn't have that dumpmdm either.  I vaguely recall trying to find a root or supervisor login when I first got the router, but not making any progress, and it seems to work fine as it is with the normal administrator level login.
:thumbs: thanks just what I needed to hear
Title: Re: Effects of Ethernet
Post by: Weaver on October 04, 2021, 02:05:00 AM
Mods: Typo in the title : ‘Effects of Ethernet’ surely? Apologies if I’m going mad though.
Title: Re: Effects of Ethernet
Post by: noddy on October 04, 2021, 06:28:55 AM
Mods: Typo in the title : ‘Effects of Ethernet’ surely? Apologies if I’m going mad though.
No not going mad Weaver  ;) I often need spelling pointed out ( Dyslexia ) or as it used to be called in my days at school ," a bit thick " so I'm appreciate any mistakes I make flagging up ( as my wife keeps telling it's the only way I'll learn  ;) )
Title: Re: Effects of Ethernet
Post by: jelv on October 04, 2021, 12:40:53 PM
Quote from: https://www.masterclass.com/articles/how-to-know-the-difference-between-affect-and-effect#affect-vs-effect-how-to-choose-the-right-word
When choosing between “affect” versus “effect,” it can be tricky to remember the variety of definitions that come with each word. However, there are plenty of mnemonic devices out there that can help you remember certain grammar rules of the English language. A good rule of thumb to remember for “affect” and “effect” is:
   
  • If you’re discussing cause and effect and you’re referring to the ending result of said cause, use “effect.” You can remember that “effect” represents the end, as they both start with “e.”
  • If you’re talking about something changing or influencing something else, use “affect.” You can remember that “affect” represents an alteration, as they both start with “a.”

I'd have thought affect was correct.
Title: Re: Effects of Ethernet
Post by: roseway on October 04, 2021, 03:29:06 PM
'Affect' is a verb, whereas 'effect' can be a noun or a verb. As verbs they have different meanings, but the title of this thread clearly requires a plural noun, so 'effects' would be correct.
Title: Re: Effects of Ethernet
Post by: burakkucat on October 04, 2021, 04:07:28 PM
Silently, stealthily, just like a ninja, b*cat paws the keyboard . . .  :angel:
Title: Re: Effects of Ethernet
Post by: noddy on October 04, 2021, 04:53:48 PM
Silently, stealthily, just like a ninja, b*cat paws the keyboard . . .  :angel:
;D
Title: Re: Effects of Ethernet
Post by: Weaver on October 07, 2021, 01:51:18 AM
@noddy two words that I can never get right: ‘dependent’ and ‘dependant’
Title: Re: Effects of Ethernet
Post by: noddy on October 07, 2021, 08:20:52 AM
@noddy two words that I can never get right: ‘dependent’ and ‘dependant’
I shouldn't worry about that I have a lot more than two words I have trouble with  :lol:
Title: Re: Effects of Ethernet
Post by: Alex Atkin UK on October 07, 2021, 10:21:52 PM
A friend of mine is an substitute Elementary teacher, I'm fairly sure he's trained in English, he gets words wrong all the time too.

I don't just get words wrong, I will often write a whole sentence, post it, and realise days later that it doesn't really say what I meant it to say.  If I'm lucky, I will find a better way to explain what I meant.  But its gotten me in many an argument because I phrased something badly.

Or my particular horror when I told someone when I worked at Plusnet that DSL gets worse in the winter because its cold and they rightly corrected me that actually it should work better due to less attenuation on the line.  I knew what I meant (that it CAN work worse in the winter, but its more down to damp joints) but once you've said something stupid, you feel like an idiot and it gives a bad impression of customer support not knowing what they're talking about.

This is one of my long standing problems, I tend to over-explain things as its safer to assume someone doesn't understand and ins and outs, but it ends badly if you word it wrong.

A few months back I got accused of mansplaining something, though I did laugh that one off because it wasn't that I over-explained because they were female, I over-explained because I ALWAYS try ti second-guess what their next question is going to be.  I don't pay any attention at all to what sex/gender/nationality the person asking is online unless its relevant to the discussion, which it wasn't..