Could be some type of network problem.  I would try checking the following:

1.  Update the network card drivers on the client.
2.  Check the speed/duplex settings on both the client and switch port and
ensure they are set to the same.  I do not rely on auto-negotiation.
3.  Check the connection for CRC errors, buffer overruns or other network
problems.

I have seen these errors when adapter teaming has been improperly
configured, specifically using Cisco Etherchannel.

John Monahan
Senior Consultant Enterprise Solutions
Computech Resources, Inc.
Office: 952-833-0930 ext 26
Cell: 952-484-5435
http://www.compures.com




                    djkory@MEDIAO
                    NE.NET               To:     ADSM-L AT VM.MARIST DOT EDU
                    Sent by:             cc:
                    "ADSM: Dist          Subject:     TCP error 10053
                    Stor Manager"
                    <ADSM-L AT VM DOT MA
                    RIST.EDU>


                    07/19/2001
                    10:28 AM
                    Please
                    respond to
                    rdnoble






Hi everyone -
We have a Win2k client machine that receives these errors during scheduled
backups. There are other Win2k machines that are backing up fine. Has
anyone
seen these errors or know what might be going on?

07/17/2001 22:28:05 TcpFlush: Error 10053 sending data on Tcp/Ip socket
940.
07/17/2001 22:28:05 sessRecvVerb: Error -50 from call to 'readRtn'.
07/17/2001 22:28:05 TcpFlush: Error 10053 sending data on Tcp/Ip socket
940.
07/17/2001 22:28:05 cuConfirm: Received rc: -50 trying to receive
ConfirmResp verb
07/17/2001 22:28:05 ANS1809E Session is lost; initializing session reopen
procedure.
07/17/2001 22:28:06 ANS1809E Session is lost; initializing session reopen
procedure.
07/17/2001 22:28:20 ANS1810E TSM session has been reestablished.
07/17/2001 22:41:32 TcpFlush: Error 10053 sending data on Tcp/Ip socket
920.
07/17/2001 22:41:32 sessSendVerb: Error sending Verb, rc: -50

Diana Noble