iPad games apps like Roblox not working

I have an Xfinity xb8 gateway. I just upgraded from the xb7 but my issues have stayed the same. I am having issues with certain apps on iOS devices not connecting to the game server. For example Roblox on iOS will give a message saying no server connection. The iPad is connected with good connection. I have offloaded the app and reinstalled, restarted multiple times the iPad and router, factory reset the router, turned on and off advanced security, changed private WiFi address to fixed and rotating and off, manual DNS to google dns, and deleted the WiFi and restarted. This issue was occurring before with the xb7 and is happening again with the xb8. I tried the troubleshooting ai bot in the app (which is a pointless loop) and it just restarted everything. I’m at a loss for why Xfinity is blocking these certain apps. Help!?!?!?