I'm having the same problem with Ubuntu 2.6.24-16.30-server using rt2500. I get the "No ProbeResp from current AP 00:1c:26:7b:51:70 - assume out of range" message after a random number of hours. Here are the logs. Tell me if you need another one.
** Attachment added: "dmesg" http://launchpadlibrarian.net/14778323/dmesg.log -- WLAN loosing connection: No ProbeResp https://bugs.launchpad.net/bugs/200500 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
