VPN users connecting to the VPN may encounter an error that says “Authentication Rejected by Server” when they attempt to connect to the VPN. This is caused by a bug introduced in a recent Windows Update patch. If you encounter this error, upgrade your VPN client by downloading a new version from the VPN webpage. The VPN webpage is accessible from the OIT homepage. If you do not encounter the problem, and are prompted by the VPN to upgrade your client, allow it to do so to avoid potential issues in the future.