I have OES2 SP3 32 bit fully patched and DSfW configured as name-mapped installation.

According to this TID 3576510 Basic Troubleshooting of Domain Services for Windows everything work except :

dsfw:~ # rpcclient -k localhost -c dsroledominfo
Receiving SMB: Server stopped responding
cli_session_setup_blob: recieve failed (NT_STATUS_IO_TIMEOUT)
failed session setup with NT_STATUS_IO_TIMEOUT
Cannot connect to server. Error was NT_STATUS_IO_TIMEOUT

How to fix it? Any clues?