Let me refresh this thread and ask a related question. First of all, I really like TeamViewer. It makes it so simple to help someone remotely use their machine. I'm using an iMac 10.6.8 and Teamviewer v6.
But what's odd is that every once in a while, I bring up the TeamViewer screen, and it simply doesn't show "Your ID" on the left hand side of the control panel. Just a dash " - ". What does this mean? That I don't have an internet connection? It appears that I do. I can use a browser and get out easily. When this happens, I'm unable to connect as a client or as a server. I restart TeamViewer, and get the same thing. I reboot the Mac and get the same thing. Using "recommended" proxy settings. I throw up my hands, walk away, and he next day, everything is fine. Weird.
Now, so far, this has been happening inside my local network. In this context (and it may be unrelated to this problem) I'm trying to understand what "Connection to Local Network" in the General preferences is for. When should I have this set to be "deactivated", "Accept", or "accept exclusively"? The manual is unclear on what's special about local network connections.