Multiple Connections to A Server Not Allowed

Sometimes you may get this error message when you try to access a shared folder in LAN:" multiple connections to a server or shared resource by the same user, using more than one user name, are not allowed" or "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."

Those behaviors are set by design by Microsoft.

To get around of it, your can try to access the server or the shared folder using IP address instead of the server name. If you have a DNS in your network, you can configure another alias for the server.

Or, just delete all the saved shares by using command line:

net use * /delete

and then set up a new share.