A tip that may save someone some time.
We have just moved a KB from the Cloud to on-premises and after the move my users started to report issues with IE (the companies default browser) not working anymore.
After some investigation we found that they have a flag set by default to run all intranet sites in ‘compatibility mode’, which Agiloft won’t work with. As we moved from cloud to on-premises this was now an ‘intranet’ site, so we suddenly hit the problem.
Unchecking compatibility mode had everything workign again.