How does the authorization of connecting to a WiFi network through "Gosuslugi" work?

Question

Computer networks

How the connection to the access point by password / WPS or server-radius works in general terms is a clear idea. But how does authorization work in a network such as WiFi Rostelecom through the portal "Gosuslugi"? Since often, for completely incomprehensible / (random?) reasons, the connection does not occur or fails, and at the same time everything can start working later, the question arises where is the root of the problem ...?

Answer 1

So the question is how is the authorization going ? (what works crookedly and why it is so clear)