Zend certified PHP/Magento developer

Connection reset in one browser?

I’m trying to help a client to access an internal site that requires smart card authentication. The user got a Windows 10 21H2 computer and if she tries to access it using IE or Firefox it works. But if she switches to Edge or Chrome she gets a connection reset error after typing her PIN.

All browsers are up to date. No proxies should be involved.
Although she can use FF the error feels weird. Why would one browser throw a connection refused error when other browsers work?