Media server = NW6.5/SP2 & BE 9.2 (1391)
Target server NW6.5/SP3 (cpr release) BE Agent and OFO loaded

When backing up this server, on the BE media server, the jobs never
starts, and sits at 0%.

The job will not cancel

It successfully backups two other servers beforehand, and they all have
BE9.2 agents installed

Inside BKUPEXEC.FAX on the media server there is an entry:
GrantAccessToServer: NWDSModifyObject(1) -- <-659><fffffd6d>

Was running fine for the last two weeks and now has started doing this.

Any idea's on how to attack this problem?