Sysback problem - API

[heeelo]

I'd like to ask some help
i have problems with sysback , below is log of what is he not doing

#############################################################################
Writing table of contents ..
Backing up System:
Volume Groups " rootvg"
...................
Estimated size is 6585 MB

Backing up / filesystem ..

Backing up /usr filesystem ..
04/03/2016 01:09:56.479 BMR0030E stbackup.c(805): Error from TSM API during SendData call: ANS1017E (RC-50) Session rejected: TCP/IP connection failure.
Clean up on failed backup image from TSM server sysback successful.

FAILURE: System backup failed to complete.

#############################################################################

 

[marclant]

04/03/2016 01:09:56.479 BMR0030E stbackup.c(805): Error from TSM API during SendData call: ANS1017E (RC-50) Session rejected: TCP/IP connection failure.

This points to a TCP communication problem while sending data.

ANS1017E
Session rejected: TCP/IP connection failure.
Explanation
An attempt to connect to the server using TCP/IP communications failed. This can be a result of incorrect TCP/IP option settings in your client options file. This error can also occur if the LAN connection went down or if your system administrator canceled a backup operation.

System action
Session rejected. Processing stopped.

User response
Retry the operation, or wait until the server comes back up and retry the operation. If the problem continues, see your system administrator for further help.

source: http://www.ibm.com/support/knowledg...om.ibm.itsm.msgs.client.doc/msg-ANS1017E.html


Because the error occurred while sending data, this would suggest that the TCPServeraddress and the TCPPort are configured right.