: 3 xboxs one home

Make sure that you use different ports on your three consoles.

Go to the network settings of each console, and in the advanced network settings use a different port on each console.

If your router PROPERLY supports UPNP, you're done here.

If you still have connection issues, manually port forward each different port on your router to the respective console.

I can tell you one way to fix this is look into a mesh network. I had a problem like this until I switched over I have like 20+ devices running on my wifi and only have the 100 from comcast. Just a thought.

Make sure your router is running the most current firmware. Are you running UNpP? Please provide as much info as possible about your network configuration.

Since you don't have the issue on other games I am wondering if isn't something to do with their servers.

Network collision has nothing to do with your connection issues. Collisions usually happen in large networks with unswitched networks, where two or more computers try to use a network wire "at the same time". Not because they all want to connect to Xbox
Live at the same time. As the page linked explains, the collisions only happen at the "Physical layer" of the OSI model. But your connection to Live is at the application layer.

Your issue is very likely caused by your three consoles using the same network ports, and your router, being "confused" to which console to send incoming data to that port.

Your issues should become resolved by setting a different custom port for each console, and if necessary, setting up port forwarding rules in your router. f

Lol, yes I have many different gamertags set up