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Author Topic: Affects of ethernet  (Read 1167 times)

noddy

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Affects of ethernet
« 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
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burakkucat

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Re: Affects of ethernet
« Reply #1 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?
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noddy

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Re: Affects of ethernet
« Reply #2 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
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noddy

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Re: Affects of ethernet
« Reply #3 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
« Last Edit: July 23, 2021, 06:41:16 AM by noddy »
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burakkucat

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Re: Affects of ethernet
« Reply #4 on: July 23, 2021, 09:58:50 AM »

To me, all the results seem to be indicating a problem with the Billion 7800N.  :-\
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noddy

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Re: Affects of ethernet
« Reply #5 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
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burakkucat

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Re: Affects of ethernet
« Reply #6 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?
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jelv

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Re: Affects of ethernet
« Reply #7 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.
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noddy

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Re: Affects of ethernet
« Reply #8 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
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tickmike

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Re: Affects of ethernet
« Reply #9 on: July 23, 2021, 09:38:13 PM »

My ADSL2 line is 4.8kl and I use a HG612
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noddy

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Re: Affects of ethernet
« Reply #10 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 ?
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roseway

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Re: Affects of ethernet
« Reply #11 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.
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  Eric

noddy

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Re: Affects of ethernet
« Reply #12 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:
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noddy

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Re: Affects of ethernet
« Reply #13 on: July 25, 2021, 09:12:39 AM »

could I ask is the wifi on the Zyxel any good ?
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RealAleMadrid

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Re: Affects of ethernet
« Reply #14 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.
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