· tried to go back from changing new Roon server, it said need to select "Go Back" but the system just hung. I reboot my computer, still can't access my Roon server.
I ended up uninstalling Roon app on my Windows 10 OS. At first it won’t allow me to uninstall due to Roon servers instances running in the background. You need to quit Roon background activities by quitting the app from active panel on bottom right hand of the screen, next to the clock. Once you stopped Roon instances, I uninstalled the app easily using Settings/ Apps -Uninstall. I reinstall Roon and managed to point the server to the correct Roon OS device.