US Telco Support > Verizon > Verizon Online DSL > [connectivity] DSL was bad, new modem has new problems

reply to Smith6612

Re: [connectivity] DSL was bad, new modem has new problems

It's possible the NID is not active outside or if it had more than one jack, was not the correct jack. If there is something plugged into one of the NID's jacks, that is your line. Those stats look nice during initial sync, so we'll need to find a way to rule out the home's wiring first to see if the fluctuation still occurs.

The NID test jack doesn't work, I just plugged a phone in and got no dial tone, and there is only one(I've done it before).

They switched me to fastpath about an hour ago, these are my new stats(after a reboot because PPPoE would not auto-reconnect):

Transceiver Revision A2pB020b3.d20h
Vendor ID Code 4D54
Line Mode ADSL_G.dmt
Data Path FAST

Transceiver Information Down Stream Path Up Stream Path
DSL Speed (Kbits/Sec) 1184 448
Margin (dB) 18.4 21.0
Line Attenuation (dB) 54.0 31.5
Transmit Power (dBm) 8.2 11.9

While I was writing this post the modem lost sync and I once again needed to reboot to get PPPoE to connect. And these are the new stats:

Transceiver Revision A2pB020b3.d20h
Vendor ID Code 4D54
Line Mode ADSL_G.dmt
Data Path INTERLEAVED

Transceiver Information Down Stream Path Up Stream Path
DSL Speed (Kbits/Sec) 1184 448
Margin (dB) 29.6 22.0
Line Attenuation (dB) 54.0 31.5
Transmit Power (dBm) 17.1 11.9

What the hell? I did request fastpath.

What I find interesting is the sudden jump in transmit power on the downstream though while it was low when FastPath was applied. Since you have Voice service, you wouldn't happen to have any static on the line when the margin gets low, would you? Or for that matter, if there is any noise at all such as humming, buzzing or popping?

This is what just happened:

1. Got disconnected from the internet. WebGUI would not load though I was still connected to the router.

2. Looked at modem/router, noticed internet light was the only one off, so I checked my phone like you said. I called my cellphone and heard static popping noises; I never heard those before.

3. Eventually internet light came back on but WebGUI still would not load so I turned it off and on. It rebooted with good margins but PPPoE would not connect. After another reboot, it works fine again.

So there is apparently noise on the line, but the PPP works poorly anyway. I don't think the DSL link has gone down at all, maybe once in the last 2 weeks. I never noticed any static while the internet was working.

Every problem possible seems to happen on my line. The margin can be as low as 4.8 on the downstream, upstream never changes. I have to put it in bridge mode and use my old router, but the DSL sync isn't reliable either. Ugh...

reply to GaaMoo
If you're hearing static or noise on the line when the DSL is not working correctly, that needs to be solved. At times I've seen DSL lines maintain sync under large amount of noise on the line but prevent data from being transferred over the line due to the constant noise. The next time you start to have issues and hear noise on the line, call Verizon Voice Repair from your cell phone and have them check your line out with an MLT Test. If the problem still exists by then, they should be able to find it if it's an issue with their wiring.

As for the failure to establish PPPoE after reboot, I've seen that happen on older equipment too (talking about equipment from the days of Wireless B and Westell 2200s/WireSpeed modems.) and normally waiting a few minutes allows it to connect. It's more than likely something with the RADIUS servers on Verizon's end.