I just upgraded from 10.04 to 10.10 and then 11.04 and am experiencing this problem. Wireless was dropping out every couple minutes between rmmod/modprobe and these were showing up in dmesg:
[ 129.176839] iwlagn 0000:03:00.0: low ack count detected, restart firmware [ 129.176844] iwlagn 0000:03:00.0: On demand firmware reload [ 129.213019] iwlagn 0000:03:00.0: Stopping AGG while state not ON or starting [ 129.213031] iwlagn 0000:03:00.0: queue number out of range: 0, must be 10 to 19 [ 136.414843] iwlagn 0000:03:00.0: Aggregation not enabled for tid 0 because load = 2 [ 143.888644] iwlagn 0000:03:00.0: Aggregation not enabled for tid 0 because load = 1 [ 149.621100] iwlagn 0000:03:00.0: Aggregation not enabled for tid 0 because load = 0 [ 157.771680] iwlagn 0000:03:00.0: Aggregation not enabled for tid 0 because load = 0 [ 163.802575] iwlagn 0000:03:00.0: Aggregation not enabled for tid 0 because load = 0 [ 170.867125] iwlagn 0000:03:00.0: iwlagn_tx_agg_start on ra = 00:1e:e5:9e:0a:60 tid = 0 [ 184.239634] iwlagn 0000:03:00.0: low ack count detected, restart firmware [ 184.239639] iwlagn 0000:03:00.0: On demand firmware reload [ 184.271897] iwlagn 0000:03:00.0: Stopping AGG while state not ON or starting [ 184.271903] iwlagn 0000:03:00.0: queue number out of range: 0, must be 10 to 19 [ 188.209013] iwlagn 0000:03:00.0: Aggregation not enabled for tid 0 because load = 1 [ 192.885524] iwlagn 0000:03:00.0: Aggregation not enabled for tid 0 because load = 3 [ 198.425048] iwlagn 0000:03:00.0: Aggregation not enabled for tid 0 because load = 1 [ 203.890479] iwlagn 0000:03:00.0: Aggregation not enabled for tid 0 because load = 1 [ 212.295429] iwlagn 0000:03:00.0: Aggregation not enabled for tid 0 because load = 2 [ 225.130290] iwlagn 0000:03:00.0: iwlagn_tx_agg_start on ra = 00:1e:e5:9e:0a:60 tid = 0 [ 255.169132] iwlagn 0000:03:00.0: low ack count detected, restart firmware [ 255.169137] iwlagn 0000:03:00.0: On demand firmware reload [ 255.201737] iwlagn 0000:03:00.0: Stopping AGG while state not ON or starting [ 255.201743] iwlagn 0000:03:00.0: queue number out of range: 0, must be 10 to 19 lspci gives this as my wireless controller: 03:00.0 Network controller: Intel Corporation Ultimate N WiFi Link 5300 Annoyed because I specifically did not upgrade to 10.10 to avoid this bug and thought it was fixed. Only it isn't. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/630748 Title: iwlagn degrades quickly during normal wifi session -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
