Two copies of OffiSign-In running

OffiSign-In says "Failed to initialize remote system" or "Failed to start the remote client server".

Two copies of OffiSign-In are running. This often happens when OffiSign-In opened somewhere you couldn't see it, such as on a monitor that's been unplugged, and was started a second time.

1. Close every copy, using Task Manager if you can't see one.
2. Start OffiSign-In once.
3. Install the latest update: from version 1.61.19, OffiSign-In always opens on a screen you can see.