RPC timed our error while mounting NFS volume

[leviya12]

I am getting below RPC timed out error while mounting one NFS volume from NetApp with NFS version 3. While mounting it is switching from TCP to UDP. With NFS version 4 i cannot mount it at all.

Any suggestions will be appreciated

Thank you

[georgevj]

run the nfs show command and see if TCP is disabled

Example on 9.2

cluster1::> vserver nfs show
	     General                                              Default
Vserver      Access  v3       v4       v4.1     UDP      TCP      Windows User
------------ ------- -------- -------- -------- -------- -------- ------------
vs0          true    enabled  disabled disabled enabled  enabled  -
vs1          true    enabled  disabled disabled enabled  enabled  -
2 entries were displayed.