Problem with radius authentication

RouterOS General
1

Hi
I have a problem with the login to winbox when I use my radius server.

There is a pc running windows 2k3 and on it there is a radius server as far every thing works fine.
When I uninstalled winradius and I insalleed IAS connected with active directory I had the above problem:
When I enter a wrong username/password I get a response from radius server “access-reject”
But as soon as I enter the right password then the radius server doesn’t respond
The problem is established only when trying to login to mikrotik either by winbox or by telnet.
For example in pptp (vpn) the authentication is running properly through the IAS
Do you know any possible solution to my problem??

2

Enable and analyze radius debug logs on both sides,
on MikroTik you can enable debug logs for RADIUS,

system logging add topics=radius,debug

You should look to the configuration of the RADIUS server, I have the same configuration scenario on desk in the lab, where login to the router is managed by the RADIUS server.
It works without any problems.