Public bug reported: Tonight I updated my 12.04 install with the latest kernel image (linux- image-3.2.0-12-generic). After a reboot, my network card couldn't connect to my wireless router. Tried rebooting a couple of times without success. Removed network definition and tried re-adding but couldn't get it to work. Booting back into the 3.2.0-11 kernal allows the network card to connect.
Problem seems to be with the DHCP. Dhclient is unable to get a response to a DHCPDISCOVER or a DHCPREQUEST call. Here are the relevant lines from the syslog: Jan 29 22:16:30 dpwegener-laptop dhclient: Copyright 2004-2010 Internet Systems Consortium. Jan 29 22:16:30 dpwegener-laptop dhclient: All rights reserved. Jan 29 22:16:30 dpwegener-laptop dhclient: For info, please visit https://www.isc.org/software/dhcp/ Jan 29 22:16:30 dpwegener-laptop dhclient: Jan 29 22:16:30 dpwegener-laptop dhclient: Listening on LPF/wlan0/1c:4b:d6:6a:ea:ea Jan 29 22:16:30 dpwegener-laptop dhclient: Sending on LPF/wlan0/1c:4b:d6:6a:ea:ea Jan 29 22:16:30 dpwegener-laptop dhclient: Sending on Socket/fallback Jan 29 22:16:30 dpwegener-laptop dhclient: DHCPREQUEST of 192.168.1.114 on wlan0 to 255.255.255.255 port 67 Jan 29 22:16:33 dpwegener-laptop dhclient: DHCPREQUEST of 192.168.1.114 on wlan0 to 255.255.255.255 port 67 Jan 29 22:16:38 dpwegener-laptop dhclient: DHCPREQUEST of 192.168.1.114 on wlan0 to 255.255.255.255 port 67 Jan 29 22:16:45 dpwegener-laptop dhclient: DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 3 Jan 29 22:16:48 dpwegener-laptop dhclient: DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 3 Jan 29 22:16:51 dpwegener-laptop dhclient: DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 4 Jan 29 22:16:55 dpwegener-laptop dhclient: DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 6 Jan 29 22:17:01 dpwegener-laptop dhclient: DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 11 Jan 29 22:17:12 dpwegener-laptop dhclient: DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 8 ** Affects: linux (Ubuntu) Importance: Undecided Status: Incomplete ** Tags: precise -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/923605 Title: Wireless network card unable to connect to router with 3.2.0-12 kernel To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/923605/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs