I am trying to backup an Exchange Information Store to ADSM 3.1.2.40 for NT.
Each time I run the backup I get the following message at varying points.

          Database : Information Store
       Backup Type : Full

Logging on to the ADSM server...

 1099,(1/2 full)> Wrote  65536 bytes, total: 72020163
Waiting for ADSM server...
 2373,(1/2 full)> Wrote  65536 bytes, total: 155513027
Waiting for ADSM server...
 3653,(1/2 full)> Wrote  65536 bytes, total: 239399107
Waiting for ADSM server...
 4942,(1/2 full)> Wrote  65536 bytes, total: 323875011
Waiting for ADSM server...
 6232,(1/2 full)> Wrote  65536 bytes, total: 408416451
Waiting for ADSM server...
 7493,(1/2 full)> Wrote  65536 bytes, total: 491057347
Waiting for ADSM server....

Backup error encountered.
ANS1017E (RC-50)  Session rejected: TCP/IP connection failure

After the TCP/IP failure I have to stop Exchange before I can try again. The
IS is about 11 GB. I have increased the COMMTIMEOUT to 36000 and turned off
compression on the client. Any suggestions?
Seth Forgosh