8800NL R2 gets stuck after upgrading to 2.52.d3

[ortorob]

Hello we are talking of:

Model Name BiPAC 8800NL R2
Software Version 2.52.d3
DSL PHY and Driver Version A2pvI042j1.d26q_rc1a

after upgrading to 2.52.d (reset all configuration from previous firmare and configured back from scratch) the router will be unaccessible for some seconds (10-20 seconds) time to time.

The router won't reboot, it is not pingable and the network doesn't work. Then suddendly the router works back again. No other network issue, it must be something related to the router that didn't ever happen before with the previous firmware.

From the log I can see:

Aug 22 17:43:56 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:43:56 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:43:56 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:43:56 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:43:56 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:43:56 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:43:56 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:43:56 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:43:56 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:43:56 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:01 kern warn kernel: net_ratelimit: 872 callbacks suppressed
Aug 22 17:44:01 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:01 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:01 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:01 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:01 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:01 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:01 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:01 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:01 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:01 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:06 kern warn kernel: net_ratelimit: 750 callbacks suppressed
Aug 22 17:44:06 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:06 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:06 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:06 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:06 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:06 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:06 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:06 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:06 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:06 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:11 kern warn kernel: net_ratelimit: 773 callbacks suppressed
Aug 22 17:44:11 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:11 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:11 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:11 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:11 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:11 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:11 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:11 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:11 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:11 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:16 kern warn kernel: net_ratelimit: 801 callbacks suppressed
Aug 22 17:44:16 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:16 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:16 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:16 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:16 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:16 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:16 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:16 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:16 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:16 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:21 kern warn kernel: net_ratelimit: 472 callbacks suppressed
Aug 22 17:44:21 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:21 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:21 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:21 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:21 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:21 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:21 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:21 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:21 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:21 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:26 kern warn kernel: net_ratelimit: 461 callbacks suppressed
Aug 22 17:44:26 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:26 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:26 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:26 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:26 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:26 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:26 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:26 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:26 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:26 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:31 kern warn kernel: net_ratelimit: 204 callbacks suppressed
Aug 22 17:44:31 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:31 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:31 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:31 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:31 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:31 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:31 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:31 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:31 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:31 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:37 kern warn kernel: net_ratelimit: 216 callbacks suppressed
Aug 22 17:44:37 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:37 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:37 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:37 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:37 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:37 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:37 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:37 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:37 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:37 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:42 kern warn kernel: net_ratelimit: 233 callbacks suppressed
Aug 22 17:44:42 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:42 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:42 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:42 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:42 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:42 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:42 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:42 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:42 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:42 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:47 kern warn kernel: net_ratelimit: 368 callbacks suppressed
Aug 22 17:44:47 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:47 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:47 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:47 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:47 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:47 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:47 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:47 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:47 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:47 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:47 kern crit kernel: eth4 (Int switch port: 4) (Logical Port: 4) Link DOWN.
Aug 22 17:44:52 kern warn kernel: net_ratelimit: 421 callbacks suppressed
Aug 22 17:44:52 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:52 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:52 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:52 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:52 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:52 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:52 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:52 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:52 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:52 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:52 kern crit kernel: eth4 (Int switch port: 4) (Logical Port: 4) Link UP 100 mbps full duplex
Aug 22 17:44:53 kern warn kernel: eth4.1 MAC address set to 60:03:47:28:79:85
Aug 22 17:44:53 kern warn kernel: netdev path : eth4.1 -> eth4
Aug 22 17:44:53 kern warn kernel: BCMVLAN : eth4 mode was set to RG
Aug 22 17:44:57 kern warn kernel: net_ratelimit: 424 callbacks suppressed
Aug 22 17:44:57 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:57 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:57 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:57 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:57 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:57 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:57 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:57 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:57 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:57 kern warn kernel: nf_conntrack: table full, dropping packet.

How to solve?

Thanks

[billion_fan]

Hello we are talking of:

Model Name BiPAC 8800NL R2
Software Version 2.52.d3
DSL PHY and Driver Version A2pvI042j1.d26q_rc1a

after upgrading to 2.52.d (reset all configuration from previous firmare and configured back from scratch) the router will be unaccessible for some seconds (10-20 seconds) time to time.

The router won't reboot, it is not pingable and the network doesn't work. Then suddendly the router works back again. No other network issue, it must be something related to the router that didn't ever happen before with the previous firmware.

From the log I can see:

Aug 22 17:43:56 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:43:56 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:43:56 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:43:56 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:43:56 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:43:56 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:43:56 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:43:56 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:43:56 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:43:56 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:01 kern warn kernel: net_ratelimit: 872 callbacks suppressed
Aug 22 17:44:01 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:01 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:01 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:01 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:01 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:01 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:01 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:01 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:01 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:01 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:06 kern warn kernel: net_ratelimit: 750 callbacks suppressed
Aug 22 17:44:06 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:06 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:06 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:06 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:06 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:06 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:06 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:06 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:06 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:06 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:11 kern warn kernel: net_ratelimit: 773 callbacks suppressed
Aug 22 17:44:11 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:11 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:11 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:11 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:11 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:11 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:11 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:11 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:11 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:11 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:16 kern warn kernel: net_ratelimit: 801 callbacks suppressed
Aug 22 17:44:16 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:16 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:16 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:16 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:16 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:16 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:16 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:16 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:16 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:16 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:21 kern warn kernel: net_ratelimit: 472 callbacks suppressed
Aug 22 17:44:21 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:21 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:21 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:21 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:21 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:21 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:21 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:21 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:21 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:21 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:26 kern warn kernel: net_ratelimit: 461 callbacks suppressed
Aug 22 17:44:26 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:26 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:26 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:26 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:26 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:26 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:26 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:26 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:26 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:26 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:31 kern warn kernel: net_ratelimit: 204 callbacks suppressed
Aug 22 17:44:31 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:31 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:31 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:31 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:31 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:31 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:31 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:31 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:31 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:31 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:37 kern warn kernel: net_ratelimit: 216 callbacks suppressed
Aug 22 17:44:37 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:37 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:37 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:37 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:37 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:37 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:37 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:37 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:37 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:37 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:42 kern warn kernel: net_ratelimit: 233 callbacks suppressed
Aug 22 17:44:42 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:42 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:42 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:42 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:42 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:42 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:42 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:42 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:42 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:42 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:47 kern warn kernel: net_ratelimit: 368 callbacks suppressed
Aug 22 17:44:47 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:47 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:47 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:47 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:47 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:47 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:47 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:47 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:47 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:47 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:47 kern crit kernel: eth4 (Int switch port: 4) (Logical Port: 4) Link DOWN.
Aug 22 17:44:52 kern warn kernel: net_ratelimit: 421 callbacks suppressed
Aug 22 17:44:52 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:52 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:52 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:52 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:52 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:52 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:52 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:52 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:52 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:52 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:52 kern crit kernel: eth4 (Int switch port: 4) (Logical Port: 4) Link UP 100 mbps full duplex
Aug 22 17:44:53 kern warn kernel: eth4.1 MAC address set to 60:03:47:28:79:85
Aug 22 17:44:53 kern warn kernel: netdev path : eth4.1 -> eth4
Aug 22 17:44:53 kern warn kernel: BCMVLAN : eth4 mode was set to RG
Aug 22 17:44:57 kern warn kernel: net_ratelimit: 424 callbacks suppressed
Aug 22 17:44:57 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:57 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:57 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:57 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:57 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:57 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:57 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:57 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:57 kern warn kernel: nf_conntrack: table full, dropping packet.
Aug 22 17:44:57 kern warn kernel: nf_conntrack: table full, dropping packet.

How to solve?

Thanks

Do you have any P2P connections running?? (eg torrents)

Try to lower max number of sessions

You can also downgrade the firmware to confirm if the issue re-occurs again http://www.billion.uk.com/esupport/inde ... on-250ad13

[ortorob]

No torrent, nothing special. Yes, it is a busy network (about 50 from pc to voip phone to ip cameras) but we don't have this problem with the previous firmware (we upgraded due to other kind of problems with wifi).

Any solution?

here is the NAT

(UPnP) Skype UDP at 192.168.0.17:48414 (3886) 48414 48414 UDP 48414 48414 192.168.0.17 ppp1.1 Edit
(UPnP) Skype UDP at 192.168.0.227:60793 (3886) 60793 60793 UDP 60793 60793 192.168.0.227 ppp1.1 Edit
(UPnP) Skype TCP at 192.168.0.227:60793 (3886) 60793 60793 TCP 60793 60793 192.168.0.227 ppp1.1 Edit
(UPnP) Skype TCP at 192.168.0.17:48414 (3886) 48414 48414 TCP 48414 48414 192.168.0.17 ppp1.1 Edit
(UPnP) Teredo 54534 54534 UDP 54534 54534 192.168.0.17 ppp1.1 Edit
(UPnP) Skype UDP at 192.168.0.7:22017 (3886) 22017 22017 UDP 22017 22017 192.168.0.7 ppp1.1 Edit
(UPnP) Skype TCP at 192.168.0.7:22017 (3886) 22017 22017 TCP 22017 22017 192.168.0.7 ppp1.1 Edit
(UPnP) Skype UDP at 192.168.0.55:17938 (3886) 17938 17938 UDP 17938 17938 192.168.0.55 ppp1.1 Edit
(UPnP) Skype TCP at 192.168.0.55:17938 (3886) 17938 17938 TCP 17938 17938 192.168.0.55 ppp1.1 Edit
(UPnP) Skype UDP at 192.168.0.24:43186 (3886) 43186 43186 UDP 43186 43186 192.168.0.24 ppp1.1 Edit
(UPnP) Skype TCP at 192.168.0.24:43186 (3886) 43186 43186 TCP 43186 43186 192.168.0.24 ppp1.1 Edit
(UPnP) XJUANDVR 60001 60001 TCP 80 80 192.168.0.29 ppp1.1 Edit
(UPnP) Skype UDP at 192.168.0.14:61363 (3886) 61363 61363 UDP 61363 61363 192.168.0.14 ppp1.1 Edit
(UPnP) Skype TCP at 192.168.0.14:61363 (3886) 61363 61363 TCP 61363 61363 192.168.0.14 ppp1.1 Edit
(UPnP) Ipcamera 80 80 TCP 80 80 192.168.0.243 ppp1.1 Edit
(UPnP) Ipcamera 38401 38401 TCP 38401 38401 192.168.0.243 ppp1.1 Edit
(UPnP) Ipcamera 554 554 TCP 554 554 192.168.0.243 ppp1.1 Edit
(UPnP) Skype UDP at 192.168.0.23:39700 (3886) 39700 39700 UDP 39700 39700 192.168.0.23 ppp1.1 Edit
(UPnP) Skype TCP at 192.168.0.23:39700 (3886) 39700 39700 TCP 39700 39700 192.168.0.23 ppp1.1 Edit
(UPnP) Garfield 1826 1826 UDP 1826 1826 192.168.0.18 ppp1.1 Edit
(UPnP) Skype UDP at 192.168.0.22:63092 (3886) 63092 63092 UDP 63092 63092 192.168.0.22 ppp1.1 Edit
(UPnP) Skype TCP at 192.168.0.22:63092 (3886) 63092 63092 TCP 63092 63092 192.168.0.22 ppp1.1 Edit
(UPnP) Garfield 1765 1765 UDP 1765 1765 192.168.0.46 ppp1.1 Edit
(UPnP) Skype UDP at 192.168.0.51:39767 (3886) 39767 39767 UDP 39767 39767 192.168.0.51 ppp1.1 Edit
(UPnP) Skype TCP at 192.168.0.51:39767 (3886) 39767 39767 TCP 39767 39767 192.168.0.51 ppp1.1

[billion_fan]

No torrent, nothing special. Yes, it is a busy network (about 50 from pc to voip phone to ip cameras) but we don't have this problem with the previous firmware (we upgraded due to other kind of problems with wifi).

Any solution?

here is the NAT

(UPnP) Skype UDP at 192.168.0.17:48414 (3886) 48414 48414 UDP 48414 48414 192.168.0.17 ppp1.1 Edit
(UPnP) Skype UDP at 192.168.0.227:60793 (3886) 60793 60793 UDP 60793 60793 192.168.0.227 ppp1.1 Edit
(UPnP) Skype TCP at 192.168.0.227:60793 (3886) 60793 60793 TCP 60793 60793 192.168.0.227 ppp1.1 Edit
(UPnP) Skype TCP at 192.168.0.17:48414 (3886) 48414 48414 TCP 48414 48414 192.168.0.17 ppp1.1 Edit
(UPnP) Teredo 54534 54534 UDP 54534 54534 192.168.0.17 ppp1.1 Edit
(UPnP) Skype UDP at 192.168.0.7:22017 (3886) 22017 22017 UDP 22017 22017 192.168.0.7 ppp1.1 Edit
(UPnP) Skype TCP at 192.168.0.7:22017 (3886) 22017 22017 TCP 22017 22017 192.168.0.7 ppp1.1 Edit
(UPnP) Skype UDP at 192.168.0.55:17938 (3886) 17938 17938 UDP 17938 17938 192.168.0.55 ppp1.1 Edit
(UPnP) Skype TCP at 192.168.0.55:17938 (3886) 17938 17938 TCP 17938 17938 192.168.0.55 ppp1.1 Edit
(UPnP) Skype UDP at 192.168.0.24:43186 (3886) 43186 43186 UDP 43186 43186 192.168.0.24 ppp1.1 Edit
(UPnP) Skype TCP at 192.168.0.24:43186 (3886) 43186 43186 TCP 43186 43186 192.168.0.24 ppp1.1 Edit
(UPnP) XJUANDVR 60001 60001 TCP 80 80 192.168.0.29 ppp1.1 Edit
(UPnP) Skype UDP at 192.168.0.14:61363 (3886) 61363 61363 UDP 61363 61363 192.168.0.14 ppp1.1 Edit
(UPnP) Skype TCP at 192.168.0.14:61363 (3886) 61363 61363 TCP 61363 61363 192.168.0.14 ppp1.1 Edit
(UPnP) Ipcamera 80 80 TCP 80 80 192.168.0.243 ppp1.1 Edit
(UPnP) Ipcamera 38401 38401 TCP 38401 38401 192.168.0.243 ppp1.1 Edit
(UPnP) Ipcamera 554 554 TCP 554 554 192.168.0.243 ppp1.1 Edit
(UPnP) Skype UDP at 192.168.0.23:39700 (3886) 39700 39700 UDP 39700 39700 192.168.0.23 ppp1.1 Edit
(UPnP) Skype TCP at 192.168.0.23:39700 (3886) 39700 39700 TCP 39700 39700 192.168.0.23 ppp1.1 Edit
(UPnP) Garfield 1826 1826 UDP 1826 1826 192.168.0.18 ppp1.1 Edit
(UPnP) Skype UDP at 192.168.0.22:63092 (3886) 63092 63092 UDP 63092 63092 192.168.0.22 ppp1.1 Edit
(UPnP) Skype TCP at 192.168.0.22:63092 (3886) 63092 63092 TCP 63092 63092 192.168.0.22 ppp1.1 Edit
(UPnP) Garfield 1765 1765 UDP 1765 1765 192.168.0.46 ppp1.1 Edit
(UPnP) Skype UDP at 192.168.0.51:39767 (3886) 39767 39767 UDP 39767 39767 192.168.0.51 ppp1.1 Edit
(UPnP) Skype TCP at 192.168.0.51:39767 (3886) 39767 39767 TCP 39767 39767 192.168.0.51 ppp1.1

Can you submit a ticket on the following link http://www.billion.uk.com/esupport/inde ... ets/Submit

Also if you have IPv6 enabled, try disabling it under 'Configuration >> LAN >> IPv6 Autoconfig' untick the 'DHCPv6 Server' and 'Issue Router Advertisements' options, apply the change and see if the issue re-occurs