Event ID 20271 "CoId= {ID}: The user administrator connected from <Client computer IP address> but failed an authentication attempt due to the following reason: The connection was prevented because of a policy configured on your RAS/VPN server.
What to do if I receive IP 20227 event?
Please ensure TCP 1701, UDP port 500, UDP port 4500 opened on firewall/router. The event IP 20227 may occur when the relevant system components are corrupt unexpectedly by some third-party software. Maybe you can try to perform a clean boot to see which service caused the issue.
How do I verify that the remote access server can accept connections?
To verify that the remote access server can accept connections, establish a remote access connection from a client computer. Click Start , and then click Control Panel . Click Network and Internet , click Network and Sharing Center , and then click Set up a connection or network .
What is error 20227 and how to resolve it?
In the clients event log, there is error 20227 ending with failure 809. Please ensure TCP 1701, UDP port 500, UDP port 4500 opened on firewall/router. The event IP 20227 may occur when the relevant system components are corrupt unexpectedly by some third-party software.
What is IP 20227?
The event IP 20227 may occur when the relevant system components are corrupt unexpectedly by some third-party software.
Is IKEv2 configured on both the client and the server?
On both the client and the server IKEv2 is configured.
