We are replacing one of the proxy servers on our network that handles traffic to and from https://helpdesk.cybertechcafe.net . During the process, we have a temporary proxy in place using a self-signed SSL certificate. The net result is that visitors to https://helpdesk.cybertechcafe.net will receive an SSL error, stating that the certificate is not valid. We apologize for any inconvenience and expect to have the new proxy server in place soon.