I have had issues with my U-Verse connection for the past 4 days. I was told to just use the modem. The numbers regarding it which are shown on the Broadband Status have lowered somewhat after I did that (which was earlier today). There was a bad storm recently which eventually caused the power to go out. Could that or the router being 2+ years old be the reason why the Internet was slow?
1 Answer
No.
The VDSL2 modem is responsible for the analog to digital conversion. Any ethernet router behind it is only dealing with the digital signals, so it can't affect the line attenuation. (Also, its not connected to the line).
It is possible that the modem is performing worse then when it was new - that is a thing on cheaper modems. That said, it is a LOT more likely that the problem relates to the effects of the storm on the line. Water can significantly change the characteristics of the copper and can cause degradation.
If you are talking about say less then 10% difference before and after the restart, maybe wait a few days, check the attenuation again and if it has not improved try restarting the modem to get it to retrain. If its more then 25%, chances are you will want to jump up and down and demand the connection be looked at by the Telco.
(That is what I have done/would do in NZ. YMMV with your telco*)
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The Line Attenuation of the modem before I unplugged both routers were 61.9 (Downstream) and 54.4 (Upstream) for Line 1 and 61.9 (Downstream) and 54.8 (Upstream) for Line 2. After unplugging them, the Line Attenuation of the modem became 48.5 (Downstream) and 55.3 (Upstream) for Line 1 and 48.7 (Downstream) and 55.9 (Upstream) for Line 2.– Zero3KCommented Mar 15, 2023 at 0:56
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What equipment are you using? How is it configured? Do you have bonded DSL? What happens if you plug your routers back in ?– davidgoCommented Mar 15, 2023 at 1:02
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Just a BGW-210 and some Powerline Adapters at the moment. I think so. The issue has and is happening again even after unplugging the routers. The tech and higher ups tell us that the "line is fine" and that it is caused by "something that we are using".– Zero3KCommented Mar 15, 2023 at 1:48
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Your question has become unclear. If you remove the router and the problem persists then you have confirmed what I said in the post, which is the answer to your question. I've not played round with this setup much, but it is plausible that Powerline adaptors can interfere with VDSL (and there is lots of evidence to support this online). I'd rule out the powerline adaptors first, and if they are the cause of the problem, then look into if and how you can fix this (maybe a PSU with better filtering, maybe running cables differently)...– davidgoCommented Mar 15, 2023 at 3:33
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That said, if everything worked fine, then storm, then things work less fine (and you didn't change anything), you are being BS'd by the techs. It may be that the line is still within what they consider OK, even though you are getting poorer performance. AT&T are not exact;y renowned for their awesome customer satisfaction.– davidgoCommented Mar 15, 2023 at 3:35