I have 1 media server running BE12 and approx 20 servers with remote agents installed. All the remote agents have been upgraded from 10d to 12 and all are published with the media server. Problem is that 1 of my SQL servers will randomly produce the error Remote Agent not detected during a backup. So far this has only occurred on differential backups, but once it occurs the first time, it continues to occur every time a backup is performed until the next full backup is run then it runs just fine. Sometimes it will run for a couple of weeks with no problem then... Any ideas?