Hi there - sounds like a bug nobody's seen before! Sorry about that.
If you can tell me what the system is then I'll look into it.
Trying to avoid spoilers for people, doesn't seem to be a spoiler tag though. When I connect to the stratcom XT server I can break in and get the auth code prompt, but anything I enter there appears to freeze it. This happened in Chrome before I downloaded it on itch, happens there too.