Hello

I have an old issue back when trying to backup via TDP for exchange 2010 
version 6.1.3.2 got this following error on my actlog.

06/18/2013 12:41:10      ANR0418W Session 18024 for administrator EXCHSRVAN_DB 
(TDP  MSExchg) is refused because an incorrect password was submitted. 
(SESSION: 18024)

Same when trying  the command: tdpexcc q exchange

Volume Shadow Copy Service (VSS) Information
--------------------------------------------

ACN5229E Error obtaining VSS information from Local DSMAgent Node: 'exchsrva'.
ANS1025E (RC137)  Session rejected: Authentication failure

I  did:

remove admin exchsrvan_db
remove admin exchsrva

register admin exchsrvan_db   password passexp=9999
register admin  exchsrva            password passexp=9999

grant authority exchsrvan_db class=node authority=owner node=exchsrvan_db

grant authority exchsrva class=node authority=owner node=exchsrva

Stop and start the service again .

Run the commands again and still got the error !

Running the command :   tdpexcc q tsm   is O.K

c:\Program Files\Tivoli\TSM\TDPExchange>tdpexcc q  tsm

IBM Tivoli Storage Manager for Mail:
Data Protection for Microsoft Exchange Server
Version 6, Release 1, Level 3.02
(C) Copyright IBM Corporation 1998, 2011. All rights reserved.

Tivoli Storage Manager Server Connection Information
----------------------------------------------------

Nodename ............................... EXCHSRVAN_DB
NetWork Host Name of Server ............ XXX.XXX.XXX.XXX
TSM API Version ........................ Version 6, Release 4, Level 0.10

Server Name ............................ ADSM2
Server Type ............................ Windows
Server Version ......................... Version 6, Release 3, Level 3.100
Compression Mode ....................... Client Determined
Domain Name ............................ DOCC
Active Policy Set ...................... POCC
Default Management Class ............... MGEXCHANGE

By the way when I restart the TSM Client Acceptor I notice that the Volume 
Shadow copy start too (Is on manual mode) , it's correct ?

I am lost …

Regards Robert