Lock Request timed out error

Several Users get the following error message when trying to save a module in Exclusive Edit mode:

error in reading/writing 'SDS-CONN-EC System' Lock request timed out consult your system administrator

What is the problem/solution?

Thanks
SystemAdmin - Wed Nov 10 16:25:54 EST 2010

Re: Lock Request timed out error
llandale - Thu Nov 11 15:35:39 EST 2010

System Admin should probably run Integrity Checker. IN any case I would log directly onto the server and edit then save this module, which may resolve a timing issue.

Re: Lock Request timed out error
SystemAdmin - Fri Nov 12 09:38:14 EST 2010

llandale - Thu Nov 11 15:35:39 EST 2010
System Admin should probably run Integrity Checker. IN any case I would log directly onto the server and edit then save this module, which may resolve a timing issue.

The problem went away the next day.

Re: Lock Request timed out error
C7BQ_Raju_Chaluva - Wed Feb 15 01:41:41 EST 2012

SystemAdmin - Fri Nov 12 09:38:14 EST 2010
The problem went away the next day.

I found problem in Accessing document in DOORS .
When i open a document in DOORS, which says document locked by me! but i had closed the document before reopening in new session.
Later i went to lock manager and unlocked the document, then tried opening the document, Now it states "Lock request timed out"
Any answer will help a lot please :)