The latest maintenance did nothing for this issue. I contacted Square about this, and received the standard boiler plate response about common connection issues and their solutions that can be found on their website. I had already attempted all these fixes. Still, I decided to turn off the router for 30 minutes, change some cables, re-check all drivers, update anything and everything that could be updated.

I continue to disconnect without warning, resulting in a 90000 error. Anywhere, anytime in the game. I am now 99.9% sure it is not a problem on my end. Everything else but this game works well and continues to stay connected. If anyone has any solutions or known compatibility issues with this game, please let me know. I really would like to figure this out.