Business license blues: unattended access failed after license upgrade

I upgraded to business license after discovering that non-profit work was still considered "commercial" in TV's parlance. So, my host computer was upgraded. When I tried to access my remote computer that still had the free version (since it is remote), I couldn't access the remote computer anymore! I got an authentication error. Finally I had to ask a friend who could get to the remote computer to go in the system of the remote computer, and completely un-install TV on it. This entailed giving my friend the system password as well...good thing he's trustworthy. I also de-activated the remote computer in my settings. Now to get access to my remote computer, I have to ask my friend to manually start-up TeamViewer and give me the password. This **bleep**! I paid for a business license and now can't even get unattended access anymore...until I get my hands on that machine and set things up again from scratch. Two questiions: With a license change does it mean you automatically lose unattended access? How do I get unattended access back without having the remote computer with me to set things up again?