I have been using both ZeroTier and OpenVPN together for some time now for different reasons on Windows 10. ZeroTier is used for remote clients to backup data, while OpenVPN requires login credentials to access internal networks. Both are totally separate.
I updated the OpenVPN Connect client from 3.2.3 to 3.3.1. After doing this the client hangs upon attempted connection to the OpenVPN server.
Using Wireshark, I determined that this is due to OVPN traffic being sent over the ZeroTier One network adapter. Revert back to the older version of the client or disable the ZeroTier One service, and OpenVPN works again.
This is basically the same issue as described here:
Can't connect to OpenVPN when joined to ZeroTier One network on Windows 10
The above post had no replies, but it looks like the issue is not tied to an OpenVPN client version in any way…but the act of moving to a different version.
Any direction on what I could do here to get both working again would be great.