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Internet service increasingly unreliable
msp112112
Enthusiast - Level 2
‎09-16-2011 05:39 AM

Over the past few weeks, my verizon dsl service drops me offline with increasing frequency. Doing a hard reset of the modem lets me reconnect about 1/3 of the time. This never used to be a problem.

Some stats from the modem:

Transceiver Revision A2pB020b3.d20h

Vendor ID Code4D54

Line Mode ADSL_G.dmt

Data Path INTERLEAVED
Transceiver Information Down Stream PathUp Stream Path

DSL Speed (Kbits/Sec)7616 864

Margin (dB) 13.5 11.0

Line Attenuation (dB) 16.0 7.0

Transmit Power (dBm) 15.8 11.9

Some interesting messages from the logs: 

Jan 1 00:01:30   daemon.err      pppd[1782]:     Unable to complete PPPoE Discovery

Jan 1 00:01:30   daemon.warn     pppd[1782]:     Timeout waiting for PADO packets

Jan 1 00:01:30   daemon.warn     pppd[1782]:     waitForPADO: timed out

Another session:

Jan 1 00:16:23   user.crit       kernel:         ADSL G.992 started

Jan 1 00:16:18   user.crit       kernel:         ADSL G.994 training

Jan 1 00:14:59   user.crit       kernel:         ADSL link down

Jan 1 00:14:54   user.crit       kernel:         ADSL G.992 channel analysis

Another session:

Jan 1 00:01:09   daemon.notice   pppd[1781]:     PPPD Exit Status changed EXIT_OK->EXIT_NEGOTIATION_FAILED during phase PHASE_SERIALCONN->PHASE_ESTABLISH

Jan 1 00:01:09   daemon.notice   pppd[1781]:     Westell phase_hook PHASE=PHASE_ESTABLISH(4)

Jan 1 00:01:09   daemon.warn     pppd[1781]:     Couldn t increase MRU to 1500

Jan 1 00:01:09   daemon.warn     pppd[1781]:     Couldn t increase MTU to 1500

Jan 1 00:01:09   daemon.notice   pppd[1781]:     Connect: ppp0 <--> nas1Jan 1 00:01:09   daemon.info     pppd[1781]:     Using interface ppp0

Jan 1 00:01:09   daemon.warn     pppd[1781]:     Creating PPPoE session file:/WFIO/ppp-config0:71 2 nas1 00:90:1a:a0:aa:08

Jan 1 00:01:09   daemon.info     pppd[1781]:     PPP session is 2

Jan 1 00:01:09   daemon.err      pppoe-relay[1083]:      PADS packet from 00:90:1a:a0:aa:08 on interface nas1 does not have Relay-Session-Id tag

Jan 1 00:01:09   daemon.err      pppoe-relay[1083]:      PADO packet from 00:90:1a:a0:aa:08 on interface nas1 does not have Relay-Session-Id tag

I can't resonably paste in more context due to verizon website doing silly things.

Is it the modems fault or verizons fault?

Mark

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Re: Internet service increasingly unreliable
msp112112
Enthusiast - Level 2
‎09-16-2011 05:40 AM

Also note its often the case that I get kicked off after about ten minutes.

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Re: Internet service increasingly unreliable
bbwah
Enthusiast - Level 2
‎09-16-2011 06:33 AM

Sounds like a bad modem.

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Re: Internet service increasingly unreliable
smith6612
Community Leader
Community Leader
‎09-16-2011 05:04 PM

Do you have voice service with Verizon? Do you by any chance get intermittent static on the line, during the times when the DSL drops?

The problem could be the line, the DSLAM or the modem at this point. It's hard to say with a single entry indicating a disconnect.

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Re: Internet service increasingly unreliable
msp112112
Enthusiast - Level 2
‎09-17-2011 11:58 AM

I don't have voice service, just dsl. Strangely enough today I haven't been disconnected once, for the first time in more than a week. Perhaps there was a problem on verizon's end that has been fixed. If there is a recurrence, I will try to talk to someone knowlegable on verizon tech support.

Mark

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Re: Internet service increasingly unreliable
smith6612
Community Leader
Community Leader
‎09-17-2011 12:22 PM

Glad to hear. Keep us in the loop if anything more develops 🙂

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