VPN Authentication problems after 4.3-2 update - Invalid password for NT/Kerberos

Hi, after upgrading the server to 4.3-2 there was a problem with vpn authorization.
I use kerio control with connection to a domain directory.
After update 4.3-2, authorization of vpn clients failed both via the standard vpn windows client (via ipsec) and through the “kerio vpn client”.
After installing all package updates, authorization by kerio vpn is working.
Standard windows and adnroid vpn authorization is still not successful, with an error
[16 / Nov / 2018 13:15:27] Authentication: VPN Client: Client: Invalid password for NT / Kerberos user testuser.

Any idea how to fix this? Thank!

No ideas? =(