Connection dropping
jgault5
Enthusiast - Level 2

Since Saturday my connection has been dropping whenever I do simple things like open two pages at once or try to watch a YouTube video. Sometimes I have luck and can do things for a while, but eventually the connection drops completely and I have to wait a few minutes for it to come back up.

This is the log from my router when it drops.

Apr 14 09:47:46 2016KernelErrorbcmxtmcfg: Connection UP, LinkActiveStatus=0x1, US=808000, DS=3360000
Apr 14 09:47:46 2016KernelErrorXTM Init: 400 tx BDs at 0xa20d4000
Apr 14 09:47:46 2016KernelErrorbcmxtmcfg: XTM Link Information, port = 0, State = UP, Service Support = ATM
Apr 14 09:47:46 2016KernelNoticemessage received before monitor task is initialized kerSysSendtoMonitorTask
Apr 14 09:47:46 2016KernelAlertLine 0: ADSL link up, Bearer 0, us=808, ds=3360
Apr 14 09:47:41 2016KernelNoticemessage received before monitor task is initialized kerSysSendtoMonitorTask
Apr 14 09:47:41 2016KernelAlertLine 0: ADSL G.992 channel analysis
Apr 14 09:47:37 2016KernelNoticemessage received before monitor task is initialized kerSysSendtoMonitorTask
Apr 14 09:47:37 2016KernelAlertLine 0: ADSL G.992 started
Apr 14 09:47:33 2016DNSWarningToo many forwarded messages
 [repeated 2 times, last time on Apr 14 09:47:34 2016]
Apr 14 09:47:24 2016KernelNoticemessage received before monitor task is initialized kerSysSendtoMonitorTask
Apr 14 09:47:24 2016KernelAlertLine 0: xDSL G.994 training
Apr 14 09:47:20 2016DNSWarningToo many forwarded messages
 [repeated 6 times, last time on Apr 14 09:47:23 2016]
Apr 14 09:47:19 2016KernelErrorbcmxtmcfg: XTM Link Information, port = 0, State = DOWN, Service Support = ATM
Apr 14 09:47:19 2016KernelNoticemessage received before monitor task is initialized kerSysSendtoMonitorTask
Apr 14 09:47:19 2016KernelAlertLine 0: ADSL link down
Apr 14 09:47:18 2016DNSWarningToo many forwarded messages
 [repeated 3 times, last time on Apr 14 09:47:18 2016]
Apr 14 09:47:18 2016KernelNoticemessage received before monitor task is initialized kerSysSendtoMonitorTask
Apr 14 09:47:18 2016KernelAlertLine 0: ADSL G.992 message exchange
Apr 14 09:47:17 2016DNSWarningToo many forwarded messages
 [repeated 2 times, last time on Apr 14 09:47:17 2016]
Apr 14 09:47:15 2016DNSWarningUnknown PTR name format
 [repeated 10 times, last time on Apr 14 09:47:15 2016]
Apr 14 09:47:14 2016KernelNoticemessage received before monitor task is initialized kerSysSendtoMonitorTask
Apr 14 09:47:14 2016KernelAlertLine 0: ADSL G.992 channel analysis
Apr 14 09:47:09 2016KernelNoticemessage received before monitor task is initialized kerSysSendtoMonitorTask
Apr 14 09:47:09 2016KernelAlertLine 0: ADSL G.992 started
Apr 14 09:46:58 2016KernelNoticemessage received before monitor task is initialized kerSysSendtoMonitorTask
Apr 14 09:46:58 2016KernelAlertLine 0: xDSL G.994 training
Apr 14 09:46:56 2016KernelErrorbcmxtmcfg: Connection DOWN, LinkActiveStatus=0x0
Apr 14 09:46:56 2016KernelErrorHOST XTM Tx ch 0 down success
Apr 14 09:46:56 2016KernelErrorbcmxtmcfg: XTM Link Information, port = 0, State = DOWN, Service Support = ATM
Apr 14 09:46:56 2016KernelNoticemessage received before monitor task is initialized kerSysSendtoMonitorTask
Apr 14 09:46:56 2016KernelAlertLine 0: ADSL link down

Please help.

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Re: Connection dropping
dslr595148
Community Leader
Community Leader

#1 You are making me/us helpers shoot into the dark!

#2 It would help to know at least:

a) What is the brand and model of your broadband modem?

b) If you have a separate router: What is the model of your RJ-45 WAN port router?

#3 While I am waiting your answers, here are the answers to my own questions (based upon for the equipment that I have).

a) Motorola SB6141 - cable modem.

b) Linksys E4200 (hardware) ver 1.

-> Last time when I was on Verizon DSL, I was using the Actiontec GT784WNW.

Re: Connection dropping
jgault5
Enthusiast - Level 2

Sorry about leaving you in the dark, I wasn't sure what type of stuff you guys would need.

I'm using a D-Link DSL-2750B router.

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Re: Connection dropping
smith6612
Community Leader
Community Leader

That log is suggesting that the modem is losing sync with the equipment on Verizon's end.

If you have a landline, do you observe any issues with it, or have any unknown noises like static or buzzing on it? Any issues with speed on the DSL, or making calls on the landline if you have one?

Re: Connection dropping
jgault5
Enthusiast - Level 2

I have actually been having a better quality connection than I have had in quite a long time, aside from the disconnects. As far as the phone line goes, there is nothing unusual with it.

I have noticed a pattern with the disconnects, whenever I am in my router and see this:

 
DSL/PPPoE
3.4 Mbps Downstream
0.9 Mbps Upstream

I get disconnected more frequently the higher the Upstream is, but over the weekend I had 0.4 Upstream and didn't disconnect once. For some reason it definitely looks like it is linked to my Upload, I hope this helps.

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Re: Connection dropping
jgault5
Enthusiast - Level 2

Can someone tell me how I can go about fixing this? I've been sitting here for over an hour with it disconnecting everytime I try to open a page and hoping that it reconnects me with a lower upstream, with no luck yet.

Could I ask someone to throttle my upload until we figure out why it keeps disconnecting me?

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Re: Connection dropping
LawrenceC
Moderator Emeritus

If you are having an issue with your Verizon service, you can use the Verizon Troubleshooter to fix and report issues with your Verizon Phone, FiOS TV, or Internet Service, as well as to schedule a repair, here is the link:
http://www.verizon.com/repair
You can find tools on the Verizon Residential Support page that may help you diagnose your issue:
http://www22.verizon.com/residentialhelp

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Re: Connection dropping
smith6612
Community Leader
Community Leader

@jgault5 wrote:

I have actually been having a better quality connection than I have had in quite a long time, aside from the disconnects. As far as the phone line goes, there is nothing unusual with it.

I have noticed a pattern with the disconnects, whenever I am in my router and see this:

 
DSL/PPPoE
3.4 Mbps Downstream
0.9 Mbps Upstream

I get disconnected more frequently the higher the Upstream is, but over the weekend I had 0.4 Upstream and didn't disconnect once. For some reason it definitely looks like it is linked to my Upload, I hope this helps.


Do you have phone service? The upstream frequences on DSL are very close to the POTS Telephone frequencies. If you're getting interference on the upstream and the speed is not staying consistent, there's a good chance you may have a bad filter, or you'll hear noise on the line whenever the upstream is being affected.

It wouldn't hurt for the sake of troubleshooting to first get something called a "HomeRun" installed. This is a dedicated line between the Telco Demarc/NID and the modem. Such setups help to rule out wiring issues in the house, and will filter the DSL service at the point of entry, eliminating the need for DSL filters in the home. Something to consider first.

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