Just had the same problem occur again, tried the usual combinations or ifdown/ifup, iwlist scan, etc/init.d/networking restart etc. as detailed above, all with the usual negative results.
I then followed the advice give here: https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.20/+bug/124801 I issued the following commands: sudo ifdown wlan0 sudo rmmod rtl8187 Waited a few seconds ... and then: sudo modprobe rtl8187 sudo ifup wlan0 Wireless networking then started working without the need of a reboot. NOTE: rtl8187 is my network driver, for the Realtek 8187 USB2 device ID:0bda:8187 Wireless network seemed to have stopped working during an FTP upload operation (using gFTP 2.0.18). I'm able to reproduce this EVERYTIME for large number of files I'm uploading (700+). The wireless network seems to drop at around 73% of files transferred, which is approx. 590+ files. The total amount of data that was being transferred, is no more than 4.5MB. NOTE: This problem does not occur using wired-networking. -- wireless stops working until reboot https://bugs.launchpad.net/bugs/132042 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
