Hi Gainer,

It might be the issue with firewall. Please check if firewall is enabled on the Client.Disabled the firewall or change the firewall rules accordingly.

For more details Kindly refer the KB article :esg62404

http://solutions.emc.com/EMCSolutionView.asp?id=esg62404&usertype=C

Thanks
Pradeep

We checked and find there is no firewall is enabled on backup NIC card   and also able to telnet to each other (client-server) , any other suggesstion 

Hello,

Have you check to see if you have another port mapper running?  For example "nobleports" is not compatible.  It would also help to see "rpcinfo -p".

Rgds.,