The user Directory publishing service reported an error

["jehrbear" <webforumsuser@xxxxxxxxxxxxxx>]

Some but not all of my users get this error when trying to connect to my CPS 
managed server:
 Directory publishing service reported an error.
 Error Details: End of file or no input:'Operation interupted or timed out'

 I've deleted, and recreated the users, but they get the same error.  The users 
connect via file share, and are located at one site where this occours?

 Any hints would be greatly appreciated.