linux smbfs network share not mounting correctly

We moved a Red Hat system to a different location, and gave it a new IP address. We attempting to mount a share on a different subnet, and altered the smbts files. The share mounts, but nothing within the mount point shows up. Attempting to unmount it results in device busy, or input/output error. Going into the folder result in the Stale NFS message, which we are not using. Anyone ever see this?