Hi, I have exactly the same problem. I found out that if I plug in a ethernet cable the wlan reconnects after some time. ( This is the only method to bring the wlan link back up apart from rebooting the system )
here is what dmesg says: (notice that after I plugged in the ethernet cable, the wlan link went up only to go down again after a few seconds ) [ 2405.388135] CE: hpet increasing min_delta_ns to 15000 nsec [ 2505.603373] gvfsd-metadata[5012]: segfault at 8 ip 0804d2ea sp bfb68b50 error 4 in gvfsd-metadata[8048000+c000] [ 2795.601043] CE: hpet increasing min_delta_ns to 22500 nsec [ 2844.549242] cfg80211: Found new beacon on frequency: 5180 MHz (Ch 36) on phy0 [ 3815.392766] wlan0: deauthenticating by local choice (reason=3) [ 3815.400875] usb 4-1: USB disconnect, address 2 [ 3815.401056] btusb_intr_complete: hci0 urb efa9e180 failed to resubmit (19) [ 3815.401070] btusb_bulk_complete: hci0 urb efa9e500 failed to resubmit (19) [ 3815.402067] btusb_bulk_complete: hci0 urb efa9ee80 failed to resubmit (19) [ 3815.402216] btusb_send_frame: hci0 urb f5b7b700 submission failed [ 3815.444010] iwl3945 0000:06:00.0: MAC is in deep sleep!. CSR_GP_CNTRL = 0x040003DD [ 3975.000175] e100: eth0 NIC Link is Up 100 Mbps Full Duplex [ 3975.000624] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [ 3985.724036] eth0: no IPv6 routers present [ 4165.000334] usb 4-1: new full speed USB device using uhci_hcd and address 3 [ 4165.204466] usb 4-1: configuration #1 chosen from 1 choice [ 4166.080523] Registered led device: iwl-phy0::radio [ 4166.080552] Registered led device: iwl-phy0::assoc [ 4166.080575] Registered led device: iwl-phy0::RX [ 4166.080598] Registered led device: iwl-phy0::TX [ 4166.094071] ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 4178.944525] wlan0: authenticate with AP 00:11:09:0d:15:93 [ 4178.948936] wlan0: authenticated [ 4178.948940] wlan0: associate with AP 00:11:09:0d:15:93 [ 4178.952811] wlan0: RX AssocResp from 00:11:09:0d:15:93 (capab=0x431 status=0 aid=1) [ 4178.952816] wlan0: associated [ 4178.955124] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 4189.612019] wlan0: no IPv6 routers present [ 4595.457092] wlan0: deauthenticating by local choice (reason=3) [ 4595.533699] iwl3945 0000:06:00.0: MAC is in deep sleep!. CSR_GP_CNTRL = 0x040003DD [ 4595.609104] usb 4-1: USB disconnect, address 3 [ 4595.609712] btusb_intr_complete: hci0 urb ef4f2400 failed to resubmit (19) [ 4595.609730] btusb_bulk_complete: hci0 urb ef4f2c80 failed to resubmit (19) [ 4595.610709] btusb_bulk_complete: hci0 urb ef4f2700 failed to resubmit (19) [ 4595.610873] btusb_send_frame: hci0 urb ed245e00 submission failed device is the same: 06:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG [Golan] Network Connection (rev 02) -- ipw3945 disconnects randomly https://bugs.launchpad.net/bugs/459978 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
