Thanks for answer
No, I couldn't find any related messages in the controller log.
When I go the VSC->User session tab, I can see this user as logged in
To be precise, in my VSC I have checked following:
-HTML -based auth
-Local
-Remote - RADIUS (with predefined profile)
Because I coudn't solve my problem, lately I have changed my VSC to Active Directry, so actually I have:
-HTML -based auth
-Local
-Remote - Active Directory
I added controler to domain and now my configuration works great.
So my problem is not so urgent now,
Although it seems strange for me, why the previous config didn't work correctly.