Sometimes. Restarting can resolve transient service hangs, but if the root cause is certificate-related, restarting alone won’t help.
Most official support sources recommend a "clean slate" approach to fix this error: Complete Uninstallation KTUninstaller utility
Below are the most effective methods to resolve the issue, moving from simple to more complex procedures.
Error 28201 can be a frustrating issue for Kerio VPN Client users, but by understanding its causes and following the troubleshooting steps outlined in this guide, you should be able to resolve the problem. If you continue to experience issues, it is recommended to contact your network administrator or Kerio support team for further assistance. By taking the time to troubleshoot and resolve Error 28201, you can ensure a secure and stable VPN connection.