Root Cause
Cause 1: The hosts file of the master server does not contain the host name resolution of the media server, or the resolution is incorrect.
Cause 2: The hosts file of the media server does not contain the host name resolution of the master server, or the resolution is incorrect.
Suggestions
In most cases, faults of status 25 occur because the hosts file of the master server or media server does not contain the host name resolution. Check whether the hosts file of the master server or media server is correctly configured.