Error "Unknown Error" when login into ctrlX CORE

[Roland_Wagner]

I was not able to connect to the virtual control via VPN with port forwarding activated. The login looks different than normal and using the password leads to "unknown error"

[schoeffler]

Recently, I had the same problem on my Firefox browser (68.8.0esr). It seems a checkbox element is missing.

With Chrome (Version 83.0.4103.61), everything works fine.

[FooFighter · Accepted solution]

If there occurs a problem with the login page ""unknown error" it may be a problem with the browser cache.

Solution: Clear the browser cache and try again.

[schoeffler]

Thanks, this explains why it suddenly stopped working on my Firefox browser (always used for ctrlX) but still worked on Chrome (never used before for ctrlX).