I have one problem with VPN L2TP. I created local users on router and I can successfully to connect at VPN L2TP, but I tried to configure NPS from a lot of source and cant make authorization and is written Authentication Failed - Radius Timeout.
Could you please help me please with clear guide how to setup NPS for authentication of users who trying to connect at L2TP ?
Without Radius its work with local users on router
In Event is written : ID 49 The connection request did not match a configured connection request policy, so the connection request was denied by Network Policy Server.
On Mikrotik I have Request and Reject in RADIUS setting
So, Mikrotik is connecting to NPS, but policies not match. The only suggestion is, check all settings thoroughly step by step on both sides, especially on NPS. Or start from scratch.
On the Conditions → Authentication Methods select “Unencrypted Authentication (PAP/SPAP)” and “Encrypted Authentication (CHAP)” and retest. I have Windows Server 2016 working with Mikrotik Dot1X using RADIUS with PAP and it works well.
Yes I know it’s unencrypted but I’m doing MAC Address authentication on an internal network.
You can only do PAP or MSCHAPv2 against AD, there is no way CHAP can work.
The ‘Ignore user dial-in account properties’ box is not ticked in your screenshots. I’m not a Windows expert, but without this I expect you have to apply a policy to the user accounts as the default is not to permit dial-in.