System Logon account no longer recognized

[tjones59]

I just started using version 12.5 sp2 on a win2k8 enterprise x64 server backing up to rd1000 removeable.  Backup ran fine for 1 week.  Now one of my other servers I was backing up will no longer recognize my system logon account.  .  I have version 11d running on another server and it can backup the same remote server in question using the same credentials.  I've put in the latest hotfix  but still nothing.  No matter what I do I cannot get this one server to accept the same credentials it did a week ago.

also, rebooted both servers still nothing.

[Dev_T]

So you are backing up single (ONE) physical server with BE 12.5 and 11D?

[tjones59]

I'm backing up three servers.  The 11d is working correctly and backing up all three.  It runs on a W2k3 server with Exchange 2k3.  I'm duplicating the same backup settings on the 12.5 which is running on a W2k8 server.  The third server is also a W2k3.  The 11d gets all three but the 12.5's logon credentials are no longer recognized by the W2k3.  The 12.5 backup is still working on the W23k server with Exchange.  I use the same administrator logon account on all of three servers. 

The weird thing is that it just stopped working exactly one week ago today.