Hi, I'm having the same problem on a ThinkPad T410si with an RTL8191SE.
What in the end helped me to get around this problem was to set the driver options to disable both software level and firmware level powersaving - the problem has virtually gone away. Try creating /etc/modprobe.d/rtl8192se-options.conf with: options rtl8192se ips=0 swlps=0 fwlps=0 Cheers, Vlad -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/291760 Title: network-manager roams to (none) ((none)) - background scanning Status in The Linux Kernel: Fix Released Status in NetworkManager: Incomplete Status in “linux” package in Ubuntu: Invalid Status in “network-manager” package in Ubuntu: Fix Released Status in “linux” source package in Maverick: Invalid Status in “network-manager” source package in Maverick: Fix Released Bug description: Binary package hint: network-manager The network manager roames to a "none" bssid and back, this happens in more or less two minute intervalls. During this time i get: Oct 31 03:44:17 Oct 31 03:44:17 coppelius named[5281]: too many timeouts resolving 'linuxhaters.blogspot.com/A' (in '.'?): disabling EDNS Oct 31 03:44:17 coppelius named[5281]: too many timeouts resolving 'www.pro-linux.de/A' (in '.'?): disabling EDNS Oct 31 03:44:17 coppelius named[5281]: too many timeouts resolving 'linuxhaters.blogspot.com/A' (in '.'?): disabling EDNS coppelius named[5281]: too many timeouts resolving 'linuxhaters.blogspot.com/A' (in '.'?): disabling EDNS Oct 31 03:44:17 coppelius named[5281]: too many timeouts resolving 'www.pro-linux.de/A' (in '.'?): disabling EDNS Oct 31 03:44:17 coppelius named[5281]: too many timeouts resolving 'linuxhaters.blogspot.com/A' (in '.'?): disabling EDNS /var/log/daemon.log Oct 31 20:29:41 coppelius NetworkManager: <debug> [1225481381.966597] periodic_update(): Roamed from BSSID 00:04:0E:73:0F:34 (Silkes Parfum) to (none) ((none)) Oct 31 20:29:47 coppelius NetworkManager: <debug> [1225481387.969699] periodic_update(): Roamed from BSSID (none) ((none)) to 00:04:0E:73:0F:34 (Silkes Parfum) Oct 31 20:31:42 coppelius NetworkManager: <debug> [1225481502.049585] periodic_update(): Roamed from BSSID 00:04:0E:73:0F:34 (Silkes Parfum) to (none) ((none)) Oct 31 20:31:48 coppelius NetworkManager: <debug> [1225481508.054596] periodic_update(): Roamed from BSSID (none) ((none)) to 00:04:0E:73:0F:34 (Silkes Parfum) Oct 31 20:33:42 coppelius NetworkManager: <debug> [1225481622.130595] periodic_update(): Roamed from BSSID 00:04:0E:73:0F:34 (Silkes Parfum) to (none) ((none)) Oct 31 20:33:48 coppelius NetworkManager: <debug> [1225481628.134635] periodic_update(): Roamed from BSSID (none) ((none)) to 00:04:0E:73:0F:34 (Silkes Parfum) To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/291760/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp