Without logs there's very little that can be do to diagnose this problem. Could you please see if after rebooting, you can get the /var/log/syslog or /var/log/syslog.1 file that contains the details of your computer trying to connect to the WEP access-point?
Also, does it do the same for WPA? ** Changed in: network-manager (Ubuntu) Status: New => Incomplete ** Changed in: network-manager (Ubuntu) Importance: Undecided => Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/776527 Title: Computer gets very slow when connecting with wep -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs