I connect to some SMB shares with my own account (my_own_account), but I need to go to the same share with a different app account since my account is not authorized to list what I want to see. I tried
Finder -> Go -> Connect to server -> smb://the_other_account@myshare.mycompany.com
It does not ask for a password, which is a sign of it does not use the account name to connect with. Then I saw that I was still connected to the share with my_own_account. I disconnect-eject the volume and try again but it does not change. I do not want to clear my credentials from the keychain because I use it frequently.
It works when you try with :* after the account name.
smb://the_other_account:*@myshare.mycompany.com
The difference is the :* after the account name. It asks for the password. The weird thing is it shows my_own_account as connected but now I can see the folders that the_other_account is authorized to see.