MachineName\UserName (where MachineName is the machine hosting the share you are attempting to access and UserName is the name of a user on that machine who has the appropriate permissions on that device)
Then try again and make sure you use the proper format for network credentials Look in Control Panel -> Credential Manager Then your credentials are either missing or corrupt. IF the results are the same 'You do not have permission to access …….
Then try the same UNC only substituting the IP address in place of the NetBIOS name Determine the IP address used by both network nodes
