mounting nfs is not the same as cifs. nfs uses the syntax
Code:
nfs_server:/share/name
The syntax for a cifs share is:
Code:
//IP address/share_name
Verify you have the correct IP address and share name. Another way to look at the server is via the smbclient utility
smbclient -L IP_address
What distribution/version is running on the host. Any recent updates or changes?