Q. Windows seems to treat authentication as a per server bases. Once you've logged in as one user it will try to use that users credentials for the next share from that server. I haven't figured out a workaround but it would be great if someone knows one. Sometimes Windows doesn't even show that you are connected to a share and the client has to be rebooted before you'll get the login prompt again to pick a different login name from what I've seen. Definitely not ideal behavior.

Ans.

Connect to the netbios name for one share.Connect to the ip address for the other share.
This will allow different credentials.Don't know if you need more than two....