How do you check to see if a specific computer port has been blocked? I get a message to check when trying to sync with Apple TV generation 1; running Lion
Running Lion 10.7.4; using Apple TV generation one. When attempting to sync, get message saying to check and see if the iTune port is blocked. Question: How do I check a specific port to see if it is open?
iMac, Mac OS X (10.5.5)