After investigation, I confirmed that my Lenovo ThinkPad X200 has connection problem when it is connecting to the N router. It is working fine at G mode.
The workaround would be disabled the N mode for the Intel 5100 AGN wireless card at the moment. My solution is : sudo nano /etc/modprobe.d/options.conf And add the following to it. options iwlagn 11n_disable=1 11n_disable50=1 After that, reboot your system. Please fix this bug, thanks. -- Intel 5100 AGN wireless connection bug https://bugs.launchpad.net/bugs/575492 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
