Major Packet Loss After Windows Updates
We have used OpenVPN Community Edit on our Terminal Server for 3 years straight with zero issues. Starting yesterday we rebooted the server after doing some Windows Updates and now we are seeing major and consistent packet loss when connected to the VPN. We have tested using different WAN addresses and routes etc... it will stay connected for like 2 minutes than drop all connections for multiple minutes at a time before reconnecting.
Does anyone know if there is a known issue with recent Windows Updates that could be affecting OpenVPN!?!?! Any ideas on where to go from here?
*UPDATE*
After HOURS of troubleshooting I was able to figure out the issue. Windows Defender updated and in this update it conflicts or blocks legacy TAP drivers of OpenVPN. I added "windows-driver wintun" to my openvpn server config to force it to use the new wintun drivers instead and now I was able to connect my clients with zero pack loss!