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


- 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

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