I have a terminal server where I have copied over shared folders from a 2003 server that is being decommissioned. I created a batch file to map drives for each user in a logon script pushed by group policy. When anyone, including the domain administrator, tries to save a file to any of the mapped drives they get the "you don't have permission to save in this location error. The permissions are set to allow the local users group, which the domain users are a part of.
The interesting thing is if I navigate to the folder a mapped drive is pointing to I can save to it fine. Any ideas why this is happening on only mapped drives?