VPN authentication error pptp

Question

Hi all.

I have a windwos server 2016 and I connect by vpn with two users to the server without problem. If I create a new user with permission to dial and that belongs to another group different from the group I have created first, it does not authenticate it. If I put the user in the first group, it connects, but if I put it in another new group, the server's viewer did not show me this error. I have looked everywhere but can't find where the fault may be.

CoId = {NA}: Point-to-point protocol module error on port: VPN4-127, Username: usu08. The connection was prevented due to a policy configured on the RAS / VPN server. Specifically, the authentication method used by the server to verify your username and password may not match the one configured in the connection profile. Contact the administrator of the RAS server and report this error.

ID; 20255

and this other warning

CoId = {F99500B9-FC8C-0000-CB1B-95F98CFCD601}: User usu08 connected from xxx.xx.xxx.xxx but the authentication attempt failed due to the following reason: Connection was prevented due to a policy configured on the RAS / VPN server. Specifically, the authentication method used by the server to verify your username and password may not match the one configured in the connection profile. Contact the administrator of the RAS server and report this error.

ID: 20271

Any ideas?

Thank you.