Disconnects: Router, line or ISP?

[Nirv]

I've been having occasional disconnects since this weekend. All connection is lost, then it comes back up again at first without internet connectivity, and then back to full connectivity within a minute of disconnecting.

The router (Billion 5102G) logs for a disconnect that happened a few minutes ago:

1/1/2000 0:0:2> SNMP TRAP 3: link up
1/1/2000 0:0:3> Last errorlog repeat 1 Times
1/1/2000 0:0:3> MPOA Link Down
1/1/2000 0:0:3> LAN promiscuous mode <1>
1/1/2000 0:0:3> Last errorlog repeat 2 Times
1/1/2000 0:0:3> SNMP TRAP 1: warm start
1/1/2000 0:0:3> main: init completed
1/1/2000 0:0:3> sending request to NTP server(6)
1/1/2000 0:0:3> netMakeChannDial: err=-3001 rn_p=80456e60
1/1/2000 0:0:9> Last errorlog repeat 1 Times
1/1/2000 0:0:9> netMakeChannDial: err=-3001 rn_p=80456e60
1/1/2000 0:0:15> netMakeChannDial: err=-3001 rn_p=80456e60
1/1/2000 0:0:21> netMakeChannDial: err=-3001 rn_p=80456e60
1/1/2000 0:0:27> Last errorlog repeat 2 Times
1/1/2000 0:0:27> netMakeChannDial: err=-3001 rn_p=80456e60
1/1/2000 0:0:33> netMakeChannDial: err=-3001 rn_p=80456e60
1/1/2000 0:0:39> netMakeChannDial: err=-3001 rn_p=80456e60
1/1/2000 0:0:46> Last errorlog repeat 10 Times
1/1/2000 0:0:46> netMakeChannDial: err=-3001 rn_p=80456e60
1/1/2000 0:0:52> Last errorlog repeat 12 Times
1/1/2000 0:0:52> netMakeChannDial: err=-3001 rn_p=80456e60
1/1/2000 0:0:58> Last errorlog repeat 14 Times
1/1/2000 0:0:58> netMakeChannDial: err=-3001 rn_p=80456e60
1/1/2000 0:1:4> Last errorlog repeat 16 Times
1/1/2000 0:1:4> Connect() to NTP server fail
1/1/2000 0:1:4> adjTimeTask fail: id = 11, ip = c4190101
1/1/2000 0:1:4> No DNS server available
1/1/2000 0:1:4> Last errorlog repeat 10 Times
1/1/2000 0:1:4> adjTimeTask fail: no server available
1/1/2000 0:1:4> adjtime task pause 60 seconds
1/1/2000 0:1:6> netMakeChannDial: err=-3001 rn_p=80456e60
1/1/2000 0:1:8> Last errorlog repeat 8 Times
1/1/2000 0:1:8> MPOA Link Up
1/1/2000 0:1:8> netMakeChannDial: err=-3000 rn_p=80456e60
1/1/2000 0:1:8> ppp_ready: ch:804a50e0, iface:803ebf68
1/1/2000 0:1:8> netMakeChannDial: err=-3000 rn_p=80456e60
1/1/2000 0:1:9> Last errorlog repeat 1 Times
1/1/2000 0:1:9> SNMP TRAP 3: link up
1/1/2000 0:1:9> Accept() fail
1/1/2000 0:1:9> Accept() fail
1/1/2000 0:2:4> sending request to NTP server(7f)
1/1/2000 0:2:4> received from NTP server(7f)
6/5/2013 11:41:7> Adjust time to 51af23d3
6/5/2013 11:41:7> adjtime task pause 1 day

I've tried a soft restart and leaving the router off for a while, but the problem persists.

I may try a trial account with another ISP tonight to see if the disconnects stop. Can anyone with knowledge of this type of issue narrow it down?

 

[DrJohnZoidberg]

Post your line stats.

 

[Nirv]

SNR Margin: 35.5 14.0 db
Line Attenuation: 29.5 16.5 db
Data Rate: 1024 512 kbps

1meg line.

 

[DrJohnZoidberg]

SNR Margin: 35.5 14.0 db
Line Attenuation: 29.5 16.5 db
Data Rate: 1024 512 kbps

1meg line.

Line stats are pretty good. Still there could be many different reasons for the disconnects - there could be some maintenance happening in the area, ISP may have been experiencing issues, local interference or borked modem. Try and eliminate all issues that you can control first like trying a different ISP account, trying a different modem, replacing network cables, etc. If problem persists take up with whoever manages your line.

 

[Nirv]

Going to try the ISP option first, then Telkom, and if all else fails, try a new router. Thanks.