I seem to have this problem too on a Thinkpad X201s running 64-bit Lucid with all the updates, except that I'm currently using the 2.6.32.22 kernel. Wireless is dropped at some point, from hours to minutes, especially after coming out of suspend. Sometimes the connection is recovered once or twice, but usually it stays dropped until a reboot.
Just a side note for anyone who may not know exactly how to add the ipv6 line: open /etc/default/grub as sudo (eg sudo nano /etc/grub/default), and alter this line:
I seem to have this problem too on a Thinkpad X201s running 64-bit Lucid with all the updates, except that I'm currently using the 2.6.32.22 kernel. Wireless is dropped at some point, from hours to minutes, especially after coming out of suspend. Sometimes the connection is recovered once or twice, but usually it stays dropped until a reboot.
Just a side note for anyone who may not know exactly how to add the ipv6 line: open /etc/default/grub as sudo (eg sudo nano /etc/grub/default), and alter this line:
GRUB_CMDLINE_ LINUX_DEFAULT= "quiet splash ipv6.disable=1"