Sunday I updated my kernel to 128.1.16 (I had to reboot so it was time to update). No problems with wireless in my home. Monday I started traveling to IEEE 802 plenary, and I have lost my wireless numerous times needing to reboot. The symptom is the radio light goes off. Back before the kernel update, this would happen sometimes at home while on battery, and I would just press the capacitor sensor and turn it back on, and I would get my signal back. But so far this week, this has not worked. Nothing. No signal is gotten after turning the radio back on (for whatever reason this system decides to turn it off). I have tried restarting the network and NetworkManager and this has not helped (this use to help in the past when I saw this behaviour). There were some messages during the kernel update as follows: Uninstalling: fuse 2.7.4-1.nodist.rf (2.6.18-128.1.6.el5) (i686) -------- Uninstall Beginning -------- Module: fuse Version: 2.7.4-1.nodist.rf Kernel: 2.6.18-128.1.6.el5 (i686) ------------------------------------- Status: Before uninstall, this module version was ACTIVE on this kernel. Removing any linked weak-modules WARNING: Can't read module /lib/modules/2.6.18-128.1.6.el5/weak-updates/fuse.ko: No such file or directory WARNING: Can't read module /lib/modules/2.6.18-128.1.6.el5/weak-updates/fuse.ko: No such file or directory fuse.ko: - Uninstallation - Deleting from: /lib/modules/2.6.18-128.1.6.el5/extra/ - Original module - No original module was found for this module on this kernel. - Use the dkms install command to reinstall any previous module version. depmod.... DKMS: uninstall Completed. Uninstalling: ipw3945 1.2.1-1.nodist.rf (2.6.18-128.1.6.el5) (i686) Error! The module ipw3945 1.2.1-1.nodist.rf is not currently installed. This module is not currently ACTIVE for kernel 2.6.18-128.1.6.el5 (i686). Cleanup : kernel [6/6] Removed: kernel.i686 0:2.6.18-128.1.6.el5 kernel-devel.i686 0:2.6.18-128.1.6.el5 Installed: kernel.i686 0:2.6.18-128.1.16.el5 kernel-devel.i686 0:2.6.18-128.1.16.el5 Updated: kernel-headers.i386 0:2.6.18-128.1.16.el5 Complete! But despite that unistalling ipw3945 message, wireless worked, or it seemed. I am seeing log messages like: Jul 15 10:35:28 nc2400 kernel: ipw3945: Detected geography ABG (11 802.11bg chan nels, 13 802.11a channels) a lot. When I lost the wireless and tried to restart everything I saw: Jul 15 10:37:27 nc2400 NetworkManager: <WARN> scan_results_cb(): could not get scan results: An error ocurred getting scan results.. I really cannot deal with frequent rebooting. Can someone point me in a direction to fix this?