We are having an issue when trying to send files over messages. To give a background on the issue, we have an iChat server setup on a mac mini machine running 10.6.8 and Server 2.0.1. Our client machines are running Mountain Lion 10.8.2. When a user tries to transfer a file over Messages, it says "Waiting for the user to accept" but it never prompts the user to accept it. Not sure why this is happening but any help would be appreciated.
Mac Pro, OS X Mountain Lion (10.8.2), Server 2.1.1