I don't think this is a duplicate...they're similar but in my case the forcedeth module is loaded after resume.
I just tried manually unloading forcedeth after resume and then re- loading it. When I do so the system claims to have detected a link but NetworkManager can't get an IP address. -- Network won't re-connect after suspend to RAM https://bugs.launchpad.net/bugs/280981 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