Agent status - Unavailable (DPM 2010)

Question

We seem to be experiencing problems with our DPM agents. Everything was working fine until we came in this morning to find that all of our DPM 2010 Agents were reporting 'Unavailable'
'Protection agent version: 3.0.7706.0
Error: Data Protection Manager Error ID: 308
 The protection agent operation failed because DPM could not communicate with the Protection Agent service.
Detailed error code: VssError:Invalid value for registry
 (0x80040153)'
We've tried all of the suggested steps to fix the problem without any success. Any suggestions would be greatly appreciated.
Thank you!

Answer 1

Hi,
Are you seeing
Event ID: 18213 in the System event logs of the protected servers?
If so, it could be the DCOM permissions in the registry have become corrupted. Permissions for DCOM applications are stored in the registry. The steps below rewrite the permissions in the registry thus correcting the corruption:
1.
On the protected server that is generating the 18213 event run dcomcnfg.exe.
2.
Navigate to Component Services -> Computers -> My Computer -> DCOM Config ->
DPM RA Service.
3.
Right-click on DPM RA Service and select Properties.
4.
On the Properties dialog go to the Security Tab. Edit the Launch and Activation Permissions.
5.
Simply Add “Everyone” and grant some permission to them ( e.g. Local Launch). Click OK then OK.
6.
Go back in and remove the permission just added.
7.
Exit dcomcnfg.exe