Disconnects every few minutes - log and line stats

[mjbarnard]

7800DXL on Zen
Suddenly in the last few days I seem to be getting very frequent disconnects. I suspect it is the line? But I do not understand how to interpret the information.
Advice appreciated.

Log :
Jun 29 09:16:42 daemon notice syslog: pppd:Remote message: CHAP authentication success, unit 3257
Jun 29 09:16:43 daemon notice syslog: pppd:local IP address 82.69.86.40
Jun 29 09:16:43 daemon notice syslog: pppd:remote IP address 62.3.84.21
Jun 29 09:16:43 daemon notice syslog: pppd:primary DNS address 212.23.6.100
Jun 29 09:16:43 daemon notice syslog: pppd:secondary DNS address 212.23.3.100
Jun 29 09:16:43 daemon crit syslog: Received valid IP address from server. Connection UP.
Jun 29 09:16:47 daemon warn kernel: ^[[0;36;44mBroadcom Packet Flow Cache flushing the flows^[[0m
Jun 29 09:31:12 daemon warn kernel: wl0: received packet with own address as source address
Jun 29 09:37:58 daemon err syslog: dhcpd:sending OFFER to IP:192.168.0.49, MAC:00:19:fb:8b:69:bc
Jun 29 09:37:58 daemon err syslog: dhcpd:sending ACK to IP:192.168.0.49, MAC:00:19:fb:8b:69:bc
Jun 29 09:42:09 daemon notice syslog: pppd:LCP terminated by peer
Jun 29 09:42:09 daemon crit syslog: Clear IP addresses. PPP connection DOWN.
Jun 29 09:42:09 daemon crit syslog: Clear IP addresses. Connection DOWN.
Jun 29 09:42:09 daemon notice syslog: pppd:Couldn't increase MTU to 1500.
Jun 29 09:42:09 daemon err syslog: pppd:Couldn't increase MRU to 1500
Jun 29 09:42:12 daemon notice syslog: pppd:Connection terminated.
Jun 29 09:42:12 daemon notice syslog: pppd:Connect time 25.5 minutes.
Jun 29 09:42:12 daemon notice syslog: pppd:Sent 8977964 bytes, received 3826019 bytes.
Jun 29 09:42:12 daemon notice syslog: pppd:Doing disconnect
Jun 29 09:42:15 daemon notice syslog: PPP: Start to connect ...
Jun 29 09:42:19 daemon crit syslog: PPP server detected.
Jun 29 09:42:19 daemon crit syslog: PPP session established.
Jun 29 09:42:19 daemon warn kernel: netdev path : ppp0.1 -> atm0.1 -> atm0
Jun 29 09:42:19 daemon notice syslog: pppd:Using interface ppp0.1
Jun 29 09:42:19 daemon notice syslog: pppd:Connect: ppp0.1 <--> atm0.1
Jun 29 09:42:19 daemon notice syslog: pppd:Couldn't increase MTU to 1500.
Jun 29 09:42:19 daemon err syslog: pppd:Couldn't increase MRU to 1500
Jun 29 09:42:19 daemon err syslog: pppd:Couldn't increase MRU to 1500
Jun 29 09:42:19 daemon crit syslog: PPP LCP UP.
Jun 29 09:42:19 daemon notice syslog: pppd:Couldn't increase MTU to 1500.
Jun 29 09:42:19 daemon err syslog: pppd:Couldn't increase MRU to 1500
Jun 29 09:42:19 daemon err syslog: pppd:Couldn't increase MRU to 1500
Jun 29 09:42:19 daemon crit syslog: PPP LCP UP.
Jun 29 09:42:19 daemon notice syslog: pppd:Remote message: CHAP authentication success, unit 3898
Jun 29 09:42:19 daemon notice syslog: pppd:local IP address 82.69.86.40
Jun 29 09:42:19 daemon notice syslog: pppd:remote IP address 62.3.84.23
Jun 29 09:42:19 daemon notice syslog: pppd:primary DNS address 212.23.6.100
Jun 29 09:42:19 daemon notice syslog: pppd:secondary DNS address 212.23.3.100
Jun 29 09:42:19 daemon crit syslog: Received valid IP address from server. Connection UP.
Jun 29 09:42:24 daemon warn kernel: ^[[0;36;44mBroadcom Packet Flow Cache flushing the flows^[[0m
Jun 29 10:04:31 daemon err syslog: dhcpd:sending ACK to IP:192.168.0.33, MAC:78:24:af:82:fa:a9
Jun 29 10:16:57 daemon err syslog: dhcpd:sending ACK to IP:192.168.0.35, MAC:00:04:20:f1:b8:3f
Jun 29 10:17:46 daemon err syslog: dhcpd:sending OFFER to IP:192.168.0.38, MAC:cc:29:f5:d4:81:36
Jun 29 10:17:47 daemon err syslog: dhcpd:sending ACK to IP:192.168.0.38, MAC:cc:29:f5:d4:81:36
Jun 29 10:18:33 daemon warn kernel: wl0: received packet with own address as source address
Jun 29 10:19:22 daemon err syslog: dhcpd:sending ACK to IP:192.168.0.38, MAC:cc:29:f5:d4:81:36
Jun 29 10:20:39 daemon err syslog: dhcpd:sending OFFER to IP:192.168.0.39, MAC:8c:29:37:d1:37:20
Jun 29 10:20:40 daemon err syslog: dhcpd:sending ACK to IP:192.168.0.39, MAC:8c:29:37:d1:37:20
Jun 29 10:21:07 daemon warn kernel: wl0: received packet with own address as source address
Jun 29 10:25:39 daemon err syslog: dhcpd:sending OFFER to IP:192.168.0.50, MAC:00:07:26:a9:fb:2e
Jun 29 10:25:39 daemon err syslog: dhcpd:sending ACK to IP:192.168.0.50, MAC:00:07:26:a9:fb:2e
Jun 29 10:27:35 daemon warn kernel: wl0: received packet with own address as source address
Jun 29 10:27:37 daemon warn kernel: wl0: received packet with own address as source address
Jun 29 10:37:50 daemon err syslog: dhcpd:sending ACK to IP:192.168.0.39, MAC:8c:29:37:d1:37:20
Jun 29 10:42:41 daemon err syslog: dhcpd:sending ACK to IP:192.168.0.39, MAC:8c:29:37:d1:37:20
Jun 29 10:43:20 daemon notice syslog: pppd:LCP terminated by peer
Jun 29 10:43:20 daemon crit syslog: Clear IP addresses. PPP connection DOWN.
Jun 29 10:43:20 daemon crit syslog: Clear IP addresses. Connection DOWN.
Jun 29 10:43:20 daemon notice syslog: pppd:Couldn't increase MTU to 1500.
Jun 29 10:43:20 daemon err syslog: pppd:Couldn't increase MRU to 1500
Jun 29 10:43:23 daemon notice syslog: pppd:Connection terminated.
Jun 29 10:43:23 daemon notice syslog: pppd:Connect time 61.1 minutes.
Jun 29 10:43:23 daemon notice syslog: pppd:Sent 17560723 bytes, received 19098474 bytes.
Jun 29 10:43:23 daemon notice syslog: pppd:Doing disconnect
Jun 29 10:43:26 daemon notice syslog: PPP: Start to connect ...
Jun 29 10:43:30 daemon crit syslog: PPP server detected.
Jun 29 10:43:30 daemon crit syslog: PPP session established.
Jun 29 10:43:30 daemon warn kernel: netdev path : ppp0.1 -> atm0.1 -> atm0
Jun 29 10:43:30 daemon notice syslog: pppd:Using interface ppp0.1
Jun 29 10:43:30 daemon notice syslog: pppd:Connect: ppp0.1 <--> atm0.1
Jun 29 10:43:30 daemon notice syslog: pppd:Couldn't increase MTU to 1500.
Jun 29 10:43:30 daemon err syslog: pppd:Couldn't increase MRU to 1500
Jun 29 10:43:30 daemon err syslog: pppd:Couldn't increase MRU to 1500
Jun 29 10:43:30 daemon crit syslog: PPP LCP UP.
Jun 29 10:43:30 daemon notice syslog: pppd:Couldn't increase MTU to 1500.
Jun 29 10:43:30 daemon err syslog: pppd:Couldn't increase MRU to 1500
Jun 29 10:43:30 daemon err syslog: pppd:Couldn't increase MRU to 1500
Jun 29 10:43:30 daemon crit syslog: PPP LCP UP.
Jun 29 10:43:30 daemon notice syslog: pppd:Remote message: CHAP authentication success, unit 3156
Jun 29 10:43:31 daemon notice syslog: pppd:local IP address 82.69.86.40
Jun 29 10:43:31 daemon notice syslog: pppd:remote IP address 62.3.84.23
Jun 29 10:43:31 daemon notice syslog: pppd:primary DNS address 212.23.6.100
Jun 29 10:43:31 daemon notice syslog: pppd:secondary DNS address 212.23.3.100
Jun 29 10:43:31 daemon crit syslog: Received valid IP address from server. Connection UP.
Jun 29 10:43:36 daemon warn kernel: ^[[0;36;44mBroadcom Packet Flow Cache flushing the flows^[[0m
Jun 29 10:52:10 daemon err syslog: dhcpd:sending ACK to IP:192.168.0.39, MAC:8c:29:37:d1:37:20
Jun 29 10:52:46 daemon err syslog: dhcpd:sending ACK to IP:192.168.0.30, MAC:18:0c:ac:2b:43:23
Jun 29 10:57:10 daemon err syslog: dhcpd:sending ACK to IP:192.168.0.12, MAC:00:1b:a9:23:b6:42

Line stats:

Mode ADSL_2plus
Traffic Type ATM
Status Up
Link Power State L0
Downstream Upstream
Line Coding (Trellis) On On
SNR Margin (dB) 7.3 16.9
Attenuation (dB) 38.5 22.4
Output Power (dBm) 0.0 12.8
Attainable Rate (Kbps) 7372 668
Rate (Kbps) 6075 351
MSGc (# of bytes in overhead channel message) 59 12
B (# of bytes in Mux Data Frame) 189 10
M (# of Mux Data Frames in FEC Data Frame) 1 1
T (Mux Data Frames over sync bytes) 1 4
R (# of check bytes in FEC Data Frame) 0 0
S (ratio of FEC over PMD Data Frame length) 0.9954 0.9777
L (# of bits in PMD Data Frame) 1527 90
D (interleaver depth) 1 1
Delay (msec) 0 0
INP (DMT symbol) 0.00 0.00
Super Frames 0 0
Super Frame Errors 861 3
RS Words 0 107839
RS Correctable Errors 0 0
RS Uncorrectable Errors 0 0
HEC Errors 7770 1
OCD Errors 20 0
LCD Errors 20 0
Total Cells 617272790 35699470
Data Cells 9491270 14082830
Bit Errors 0 38
Total ES 385 3
Total SES 8 0
Total UAS 50 50

[billion_fan]

7800DXL on Zen
Suddenly in the last few days I seem to be getting very frequent disconnects. I suspect it is the line? But I do not understand how to interpret the information.
Advice appreciated.

Log :
Jun 29 09:16:42 daemon notice syslog: pppd:Remote message: CHAP authentication success, unit 3257
Jun 29 09:16:43 daemon notice syslog: pppd:local IP address 82.69.86.40
Jun 29 09:16:43 daemon notice syslog: pppd:remote IP address 62.3.84.21
Jun 29 09:16:43 daemon notice syslog: pppd:primary DNS address 212.23.6.100
Jun 29 09:16:43 daemon notice syslog: pppd:secondary DNS address 212.23.3.100
Jun 29 09:16:43 daemon crit syslog: Received valid IP address from server. Connection UP.
Jun 29 09:16:47 daemon warn kernel: ^[[0;36;44mBroadcom Packet Flow Cache flushing the flows^[[0m
Jun 29 09:31:12 daemon warn kernel: wl0: received packet with own address as source address
Jun 29 09:37:58 daemon err syslog: dhcpd:sending OFFER to IP:192.168.0.49, MAC:00:19:fb:8b:69:bc
Jun 29 09:37:58 daemon err syslog: dhcpd:sending ACK to IP:192.168.0.49, MAC:00:19:fb:8b:69:bc
Jun 29 09:42:09 daemon notice syslog: pppd:LCP terminated by peer
Jun 29 09:42:09 daemon crit syslog: Clear IP addresses. PPP connection DOWN.
Jun 29 09:42:09 daemon crit syslog: Clear IP addresses. Connection DOWN.
Jun 29 09:42:09 daemon notice syslog: pppd:Couldn't increase MTU to 1500.
Jun 29 09:42:09 daemon err syslog: pppd:Couldn't increase MRU to 1500
Jun 29 09:42:12 daemon notice syslog: pppd:Connection terminated.
Jun 29 09:42:12 daemon notice syslog: pppd:Connect time 25.5 minutes.
Jun 29 09:42:12 daemon notice syslog: pppd:Sent 8977964 bytes, received 3826019 bytes.
Jun 29 09:42:12 daemon notice syslog: pppd:Doing disconnect
Jun 29 09:42:15 daemon notice syslog: PPP: Start to connect ...
Jun 29 09:42:19 daemon crit syslog: PPP server detected.
Jun 29 09:42:19 daemon crit syslog: PPP session established.
Jun 29 09:42:19 daemon warn kernel: netdev path : ppp0.1 -> atm0.1 -> atm0
Jun 29 09:42:19 daemon notice syslog: pppd:Using interface ppp0.1
Jun 29 09:42:19 daemon notice syslog: pppd:Connect: ppp0.1 <--> atm0.1
Jun 29 09:42:19 daemon notice syslog: pppd:Couldn't increase MTU to 1500.
Jun 29 09:42:19 daemon err syslog: pppd:Couldn't increase MRU to 1500
Jun 29 09:42:19 daemon err syslog: pppd:Couldn't increase MRU to 1500
Jun 29 09:42:19 daemon crit syslog: PPP LCP UP.
Jun 29 09:42:19 daemon notice syslog: pppd:Couldn't increase MTU to 1500.
Jun 29 09:42:19 daemon err syslog: pppd:Couldn't increase MRU to 1500
Jun 29 09:42:19 daemon err syslog: pppd:Couldn't increase MRU to 1500
Jun 29 09:42:19 daemon crit syslog: PPP LCP UP.
Jun 29 09:42:19 daemon notice syslog: pppd:Remote message: CHAP authentication success, unit 3898
Jun 29 09:42:19 daemon notice syslog: pppd:local IP address 82.69.86.40
Jun 29 09:42:19 daemon notice syslog: pppd:remote IP address 62.3.84.23
Jun 29 09:42:19 daemon notice syslog: pppd:primary DNS address 212.23.6.100
Jun 29 09:42:19 daemon notice syslog: pppd:secondary DNS address 212.23.3.100
Jun 29 09:42:19 daemon crit syslog: Received valid IP address from server. Connection UP.
Jun 29 09:42:24 daemon warn kernel: ^[[0;36;44mBroadcom Packet Flow Cache flushing the flows^[[0m
Jun 29 10:04:31 daemon err syslog: dhcpd:sending ACK to IP:192.168.0.33, MAC:78:24:af:82:fa:a9
Jun 29 10:16:57 daemon err syslog: dhcpd:sending ACK to IP:192.168.0.35, MAC:00:04:20:f1:b8:3f
Jun 29 10:17:46 daemon err syslog: dhcpd:sending OFFER to IP:192.168.0.38, MAC:cc:29:f5:d4:81:36
Jun 29 10:17:47 daemon err syslog: dhcpd:sending ACK to IP:192.168.0.38, MAC:cc:29:f5:d4:81:36
Jun 29 10:18:33 daemon warn kernel: wl0: received packet with own address as source address
Jun 29 10:19:22 daemon err syslog: dhcpd:sending ACK to IP:192.168.0.38, MAC:cc:29:f5:d4:81:36
Jun 29 10:20:39 daemon err syslog: dhcpd:sending OFFER to IP:192.168.0.39, MAC:8c:29:37:d1:37:20
Jun 29 10:20:40 daemon err syslog: dhcpd:sending ACK to IP:192.168.0.39, MAC:8c:29:37:d1:37:20
Jun 29 10:21:07 daemon warn kernel: wl0: received packet with own address as source address
Jun 29 10:25:39 daemon err syslog: dhcpd:sending OFFER to IP:192.168.0.50, MAC:00:07:26:a9:fb:2e
Jun 29 10:25:39 daemon err syslog: dhcpd:sending ACK to IP:192.168.0.50, MAC:00:07:26:a9:fb:2e
Jun 29 10:27:35 daemon warn kernel: wl0: received packet with own address as source address
Jun 29 10:27:37 daemon warn kernel: wl0: received packet with own address as source address
Jun 29 10:37:50 daemon err syslog: dhcpd:sending ACK to IP:192.168.0.39, MAC:8c:29:37:d1:37:20
Jun 29 10:42:41 daemon err syslog: dhcpd:sending ACK to IP:192.168.0.39, MAC:8c:29:37:d1:37:20
Jun 29 10:43:20 daemon notice syslog: pppd:LCP terminated by peer
Jun 29 10:43:20 daemon crit syslog: Clear IP addresses. PPP connection DOWN.
Jun 29 10:43:20 daemon crit syslog: Clear IP addresses. Connection DOWN.
Jun 29 10:43:20 daemon notice syslog: pppd:Couldn't increase MTU to 1500.
Jun 29 10:43:20 daemon err syslog: pppd:Couldn't increase MRU to 1500
Jun 29 10:43:23 daemon notice syslog: pppd:Connection terminated.
Jun 29 10:43:23 daemon notice syslog: pppd:Connect time 61.1 minutes.
Jun 29 10:43:23 daemon notice syslog: pppd:Sent 17560723 bytes, received 19098474 bytes.
Jun 29 10:43:23 daemon notice syslog: pppd:Doing disconnect
Jun 29 10:43:26 daemon notice syslog: PPP: Start to connect ...
Jun 29 10:43:30 daemon crit syslog: PPP server detected.
Jun 29 10:43:30 daemon crit syslog: PPP session established.
Jun 29 10:43:30 daemon warn kernel: netdev path : ppp0.1 -> atm0.1 -> atm0
Jun 29 10:43:30 daemon notice syslog: pppd:Using interface ppp0.1
Jun 29 10:43:30 daemon notice syslog: pppd:Connect: ppp0.1 <--> atm0.1
Jun 29 10:43:30 daemon notice syslog: pppd:Couldn't increase MTU to 1500.
Jun 29 10:43:30 daemon err syslog: pppd:Couldn't increase MRU to 1500
Jun 29 10:43:30 daemon err syslog: pppd:Couldn't increase MRU to 1500
Jun 29 10:43:30 daemon crit syslog: PPP LCP UP.
Jun 29 10:43:30 daemon notice syslog: pppd:Couldn't increase MTU to 1500.
Jun 29 10:43:30 daemon err syslog: pppd:Couldn't increase MRU to 1500
Jun 29 10:43:30 daemon err syslog: pppd:Couldn't increase MRU to 1500
Jun 29 10:43:30 daemon crit syslog: PPP LCP UP.
Jun 29 10:43:30 daemon notice syslog: pppd:Remote message: CHAP authentication success, unit 3156
Jun 29 10:43:31 daemon notice syslog: pppd:local IP address 82.69.86.40
Jun 29 10:43:31 daemon notice syslog: pppd:remote IP address 62.3.84.23
Jun 29 10:43:31 daemon notice syslog: pppd:primary DNS address 212.23.6.100
Jun 29 10:43:31 daemon notice syslog: pppd:secondary DNS address 212.23.3.100
Jun 29 10:43:31 daemon crit syslog: Received valid IP address from server. Connection UP.
Jun 29 10:43:36 daemon warn kernel: ^[[0;36;44mBroadcom Packet Flow Cache flushing the flows^[[0m
Jun 29 10:52:10 daemon err syslog: dhcpd:sending ACK to IP:192.168.0.39, MAC:8c:29:37:d1:37:20
Jun 29 10:52:46 daemon err syslog: dhcpd:sending ACK to IP:192.168.0.30, MAC:18:0c:ac:2b:43:23
Jun 29 10:57:10 daemon err syslog: dhcpd:sending ACK to IP:192.168.0.12, MAC:00:1b:a9:23:b6:42

Line stats:

Mode ADSL_2plus
Traffic Type ATM
Status Up
Link Power State L0
Downstream Upstream
Line Coding (Trellis) On On
SNR Margin (dB) 7.3 16.9
Attenuation (dB) 38.5 22.4
Output Power (dBm) 0.0 12.8
Attainable Rate (Kbps) 7372 668
Rate (Kbps) 6075 351
MSGc (# of bytes in overhead channel message) 59 12
B (# of bytes in Mux Data Frame) 189 10
M (# of Mux Data Frames in FEC Data Frame) 1 1
T (Mux Data Frames over sync bytes) 1 4
R (# of check bytes in FEC Data Frame) 0 0
S (ratio of FEC over PMD Data Frame length) 0.9954 0.9777
L (# of bits in PMD Data Frame) 1527 90
D (interleaver depth) 1 1
Delay (msec) 0 0
INP (DMT symbol) 0.00 0.00
Super Frames 0 0
Super Frame Errors 861 3
RS Words 0 107839
RS Correctable Errors 0 0
RS Uncorrectable Errors 0 0
HEC Errors 7770 1
OCD Errors 20 0
LCD Errors 20 0
Total Cells 617272790 35699470
Data Cells 9491270 14082830
Bit Errors 0 38
Total ES 385 3
Total SES 8 0
Total UAS 50 50

Ask Zen to investigate the line, as the line keep dropping out (the routers logs can't tell you why, all it can state is the connection was dropped)

[simonh]

I am with Zen and have a very similar issue, however, I am not certain my problem is with the connection, rather the 7800DXL. I have had the Router replaced and have the same problem but if I change to a Netgear DG834 the problem goes away. I have spent a lot of time on the phone with Zen who have suggested that it may be Rein interference. BUT just recently my family have been away and I was left home alone and there were virtually no drop outs at all. this has led me to suspect that if there is too much traffic the the routher diconnects from the internet. I haven't had time to look into it further, maybe someone has a suggestion?

[billion_fan]

I am with Zen and have a very similar issue, however, I am not certain my problem is with the connection, rather the 7800DXL. I have had the Router replaced and have the same problem but if I change to a Netgear DG834 the problem goes away. I have spent a lot of time on the phone with Zen who have suggested that it may be Rein interference. BUT just recently my family have been away and I was left home alone and there were virtually no drop outs at all. this has led me to suspect that if there is too much traffic the the routher diconnects from the internet. I haven't had time to look into it further, maybe someone has a suggestion?

Never heard of the issue where if there is a lot of traffic the router will manually on purpose drop the internet connection, it could be that once there is heavy load on the DSL side, the line might drop, (maybe connecting too quick and then when stressed it becomes to unstable)

Maybe you can try and higher the SNR to see if that helps with the drop outs.

[simonh]

Thanks for that, the D/S SNR margin sits at around 9.1 on a normal day (see attached) do you think it could be worth raising it further?

[billion_fan]

Thanks for that, the D/S SNR margin sits at around 9.1 on a normal day (see attached) do you think it could be worth raising it further?

Not sure if it will make a difference but you can try targeting a SNR of around 12db

[simonh]

I will try that thank you.

I updated to the latest firmware (2.32e) yesterday and I think it has improved a little but I will speak to Zen and get them to send me a graph which will confirm it. I will keep you updated.

[Tomken]

You could try RouterStatsLite which will provide you with a graph, but with a Downstream Attenuation of 33.0, that should support a SNRM of 6dB quite comfortably.

http://www.vwlowen.co.uk/internet/files.htm

I think checking your home set up or your line would prove beneficial.

When you have quite a few doing this, that and the other online, that can max out the bandwidth and cause disconnects, but if you are still getting them when on your own then that warrants further investigation.

[simonh]

Thanks for the suggestion Tomken

There have been many less drop outs since updating the firmware, but browsing has been exceptionally slow at times. I think I have narrowed it down to a Galaxy S4 Mini that uses the network. If we disable the wireless on it then browsing on all other devices returns to normal. I have been able to figure this out with the help of Zen and them sending me over the connection graphs and marrying those up with the times people are using the network.

What can I do to reduce it's available bandwidth?

Thanks

[Tomken]

I'm not into Androids (don't even have a mobile phone ) but QoS would be the answer and billion_fan will be able to help you with that if he picks up your thread again.