NFS RFS3_LOOKUP alerts

Hi Guys,

Would anyone know how to fix this message appearing on the server logs.

"Failed to decode arguments for NFS version 3 procedure RFS3_LOOKUP client"

NFS server is set to use ver3 for client/server and on the NFS clients all mounted FS are using ver3.

but we are still getting the message above from a client that has no mounted FS from the NFS server.