K_EAuthSessionResponseAuthTicketCanceled

I'm getting the abovementioned error when trying to host a Rust server with Oxide 2. The server works great but it kicks me after 5 to 10 minutes of playing and displays that error in the console. The idea is to host a private server for me and a few of my friends to play on.

Server and client are running on the same machine (i7 2600k, 8GB RAM, GTX 970).

What's happening, and how do I fix this?