Probably b/c he is entering his own ip no. & not yours. I've heard of that happening before. Though I haven't been able to replicate it personally. So make sure he enters your ip no. Another way you 2 can connect is if he searches for a particular file that "only" you have. He can then browse you. Once he has browsed you he can get compare your ip no. to check to make sure. If you can browse you can often DC also. Make sure he has chat enabled.