The Network Hotfix is available for:
If you use the Map Network Drive Wizard to connect to a network share by using different user credentials and you use the browse functionality to locate the network share, you may receive the following error message:
The network folder specified is currently mapped using a different user name and password. To connect using a different user name and password, first disconnect any existing mappings to this network share. You receive this error message even though you are not aware of making a different connection.
News source: Warp2Search