NBU 7.6 client Installation failed

[Vipluv]

After successful installation of PBX, NBU client 7.6 installation failing on HP-UX B.11.11 server.

Installing PBX...
Please wait while installation is in progress...
Installation completed Successfully

ERROR:   The pbx_exchange daemon is not currently running.  It must be started before NetBackup installation can be continued. Aborting ...

Installation trace and PBX installation logs attached.

[Marianne · Accepted solution]

See if anything else is using port 1556.

Symantec has registered this port number for PBX.
Anything else using this port number need to change.

[Vipluv]

Found a application is using port 1556. Informed application team to change.