Sorry about the connection issues you're having with your gaming consoles. I imagine that's frustrating for your family. Let's take a look at the situation and see what is going on. Adding a point to the network shouldn't affect any of the devices and their ability to connect. I have a few questions to help us get troubleshooting started.
If there are any other details you can provide, they would help out as well. I look forward to hearing back from you.