When using OpenVPN, TAP-Windows Adapter V9 says its unplugged after a few months

After a few months of using OpenVPN inside a Windows virtual machine, the TAP adapter stops working and says it's unplugged.

I have no idea how to fix this. Seems like something needs to be cleared or reset? I don't know if its something on the virtual machine that needs to be reset or something on the parent machine (also running windows 10).

Any ideas?

Network cable unplugged just means that it can't connect. It is a symptom of the problem and not the problem itself.

In my case, there was an issue on the server with it timing out the certificate on the client after a few months.