Check if the NFS server has exported the share to the new client address you have setuped.
If you do not require the NFS mountpoint in question, you will need to comment it out or delete it from /etc/auto_master file or an equivalent file, depending on the content of /etc/auto_master.
The NFS server as a remote server (not the client - your server) which shared the path via NFS is not available or is restricting the access to your client (your server).
This has nothing with NFS server on your host, your host is the client to NFS server.
mounting remote NFS file system
Is your NFS server available on the new location ?