connexion Ldap est refusée:

quarta

J'ai un VPN sur un ZyXEL100 
depuis que Upgader les DC en serveur 2022
la connexion Ldap est refusée:
 

alert

l2tp-over-ipsec

User quarta.local\testvpn2 has been denied from L2TP service.(Incorrect Username or Password)

92.174.79.49:1701

Zyxel_Kevin

Hi @quarta, 
Greeting forum. If you have "Domain Authentication for MSChap". 

Please check DC have enabled SMBv1 support.
How to detect, enable and disable SMBv1, SMBv2, and SMBv3 in Windows
If the issue still, Please provide packets of authentication between DC/Firewall bynprivate message.
Thank you.
Kevin