The BCM4313 "works" very unreliably using the brcmsmac module (which happens to be the default module for this chipset).
The "solution" is to install the bcmwl-kernel-source package (like you did on 12.10). But that package ("wl" driver) is a mess in itself. Since you are using raring you can more-or-less safely avoid the whole mess by installing the package from: https://launchpad.net/~eugenesan/+archive/ppa/+sourcepub/3156599/+listing-archive-extra (Read here for more information: https://bugs.launchpad.net/ubuntu/+source/bcmwl/+bug/1157880) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1169755 Title: WLAN won't stay connected in 13.04 raring To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1169755/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs