This error is very generic and can be alot of different things.  To try and save you time I really would consider logging a support case for this one in my view.       

Hi,

Have you moved users between ev systems.  One common reason is you have shortcuts from another EV system and we are trying to lookup that system yet we may not be able to reach it.

Hi,

If you did a dtrace of the archivetask it will likely show the alias it is trying to connect to (and fails).  You could then define that alias to point in fact to the local system so that the lookup 'works' or at least it reaches a directory service.  However I am not sure if it then doesn't find the archive wheher it will just log a different error or actually just fail silently. 
Do these users shortcuts actually work, can they be user to view archived items?

Do you need any more assistance with this?
If a post solved your problem, can you mark that as the Solution?

Thanks & Regards
Michel

Michel.

Nice timing.  I closed this support case with Symatec on Tuesday - we think it came down to a DCOM permssions issue.

Ciao.

Could you let us know the specific resolution?

Would be nice for others to know exactly what to do... ?

Thanks  & Cheers
Michel