Is avahi-daemon actually running? If you install 'avahi-discover' and run it, can you see your own services (workstation service, for example)
Also, if so, what network interface do you have / what type is it? -- Automatic Service Discovery-Button in the network-admin can't be set https://launchpad.net/bugs/65308 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs