If you try to connect to a share on a file server you already have connections

or mapped drives to, using alternate credentials, Windows displays:

 

        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.

 

 

It is sometimes possible to bypass this by:

 

- create a DNS alias (if you have access to DNS), pointing a different name to

  the file server

 

or

 

- create an entry in the hosts file, pointing to the IP address of the file

  server but with a different hostname that you make up

 

Then, connect to the desired share using the net use command from a cmd

window:

 

net use r: \\altnamefileserver\e$ /user:domain_admin@examplewindowsdomain.com