I'm trying to get to the bottom of a problem I've experienced many times: I have a Server 2012 Essentials R2 server and I want to run the 'Connector Configuration Wizard' so that machines are available in the pool of computers users can remotely connect too.
The machine is a very clean
install of Windows 10 (literally nothing on it apart from Windows 10), fully updated and its joined to the domain.
When I run the wizard I am asked to enter a users 'Network user name and password' which I do. This kicks up an error implying its already been connected (I check - it hasn't). If I try entering network admin credentials, I get a warning saying 'You entered an administrator account name and password', its recommend you use a standard user account. Yet when I enter a standard user, I get the original error. I know from experience that if I enter a network admin account proceed, it works fine.
In summary, I'm experiencing the exact issue outlined here: http://bobmckay.com/i-t-support-networking/server-2012-r2-essentials-cannot-connect-computer-network/
Any one got any ideas why this occurs? (its happened to me a bunch of times on different networks).