After instance Reboot I can no longer connect

I rebooted my Free tier Windows instance as I do at times just for maintenance. I can no longer RDP into it. (Windows or MAC clients) I verified that the external DNS didn't change (for some reason), I verified my external IP address still matches my inbound rule entry I was able to get a screenshot of the instance and I can see the desktop (even waited for the time to change) So it's seemingly running but I can no longer RDP. I am on Free tier so my troubleshooting options are limited Any thoughts would be appreciated. I run some Windows apps that I don't run at home and it's critical I get back on there.