I was wondering if anyone knew the answer to this. I have two linux mint 13 intallations. One of the hostnames shows up in my router's 'connected devices' list, while the other does not. They both show IP address, but one, for some reason will not show it's hostname. When I do a 'hostname' on either machine, they report their name correctly. Any idea why one machine reports its name and the other doesn't?
I think their samba setups are essentially the same. But they might be slightly different, but I'm not sure what to look for.