The closest relevant information I’ve found on the error is this: " This error doesn’t really mean much on its own. The exit code of 2 simply means the kernel rejected your route for some reason. It could be because you already have a route for that network, it could be because the gateway was not appropriate for the network/subnet, or many other things.
In any case bump up the verbosity you should be able to see more details about what specific route was failing.
Depending on the error you may need to fix your configuration, or just ignore the error. Sometimes the vpn server will offer routes, that your computer already has, or do not apply to your current connection."
This was relating to pfsense so I’m not sure if there is a way to get a more detailed log to see which route is failing.