Multiple connections to a server or shared resource by the same user, using more than one user name, are not allowed
Problem:
You try to connect to a server or shared folder and get this message:
Multiple connections to a server or shared resource by the same user, using more than one user name, are not allowed…
Cause:
You already have a connection to that resouce using a different username.
Solution:
Disconnect your other connections then try again. Open a command prompt and type:
net use * /delete