Charles99 I was getting this error on my OpenVPN server: read UDPv4 [EHOSTUNREACH]: No route to host (code=113) it seemed to be a network problem, but after a lot of work I found out it is because the time and date of the client-side was outdated! Due to this error, I was enabled to connect to my Microsoft phone system. Can anyone help me how to troubleshoot this error? Regards, Charles