Error 67 is “The network name cannot be found.” It’s peculiar that you would see this on just a single 2008 R2 target, but I think it could probably mean a few things. Here are a couple of things to try and places to look:
1. DNS or NetBIOS issue/error. Try the FQDN if you aren’t already using the FQDN. Try the NetBIOS name if you are already using the FQDN. Try the IP address instead of the FQDN or NetBIOS name. See if any of those helps.
2. Make sure that there isn’t some type of anti-virus, host intrusion prevention, or other host security software severing the connection.
-Doug