![]() ![]() Attempt another VPN connection and observe the firewall logs. Next, enable firewall logging on the NPS server to log both allowed and dropped packets. TroubleshootingĬarefully review the authentication policy on both the client and server to ensure they match. This often occurs when, for example, the server is configured to use Protected Extensible Authentication Protocol (PEAP), but the client is configured to use Microsoft CHAP Version 2 (MS-CHAP v2). The error code returned on failure is 812.Īlways On VPN error code 812 indicates an authentication policy mismatch between the client and the server. The user dialed a connection named which has failed. In addition, an event ID 20227 from the RasClient will be recorded in the application event log with the following error message. Please contact the Administrator of the RAS server and notify them of this error. Specifically, the authentication method used by the server to verify your username and password may not match the authentication method configured in your connection profile. ![]() The connection was prevented because of a policy configured on your RAS/VPN server. When deploying a Windows Server 2019 Network Policy Server (NPS) to support a Windows 10 Always On VPN implementation, administrators may encounter the following error when attempting to establish a VPN connection on a remote Windows 10 client. Note: This post updated March 19,2019 to reflect new workaround configuration guidance. ![]()
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