XBOX ONE WIFI/CONTROLLER DISCONNECT SOLVED!

Is this an Xbox One controller, or an Xbox 360 controller? If it's an Xbox One controller, are you connecting wirelessly to the PC via Bluetooth, or with the Xbox Wireless Adapter?

Xbox one controller with an xbox wireless adapter

If you plug the controller in via wire, does the controller still have issues?

Are you in an area with lots of wifi signals (for example, an apartment block)? If that's the case, it could be harder to find a solution, but it's possible that you might be having wifi interference issues. The controller connects to the wireless adaptor
using wifi signals and not Bluetooth, so it's sometimes susceptible to wifi interference. I had this issue with my Xbox One, I solved it by going into my wireless router's settings and changing the channel at which it broadcasts. I had to try a bunch of different
channels until I found one which seemed to significantly reduce the disconnections.

Hopefully that might work for you too.

This should hopefully solve the issue
support.xbox.com/.../wireless-controller-disconnects

I know the exact problem. Its WiFi. Use ethernet cord and it will solve your problem. WiFi tends to Disconnect every hour. I do not know why people are posting so much complicated answers but its the WiFi, and nothing else. Proof: All who disconnects randomly
are those who uses WiFi and had their issues solved by a simple ethernet cord.

Let me guess, you are connected to WiFi.... The problem with wifi is that there will always be an interference with the connection. As a result, you will disconnect from Xbox live. The only way to solve this issue is to use an ethernet cable. This will guarantee
that you will not disconnect from xbox live. I know this for a fact because Everyone who has this issue are those who uses wifi to connect to xbox live. I strongly suggest using a ethernet cable because you will not disconnect. P.S: AVOID NETGEAR!! LoL, Worst
WiFi router ever!

I'd assume your console is connected wirelessly to your WiFi. Since you say the network as well as the controller are disconnecting, I'd guesstimate, that you have a device that also uses the 2.4GHz frequency like the controllers and the WiFi, that interferes
with your WiFi and wireless controller connection.

It might be a badly shielded microwave oven, or a wireless baby monitor, or a garage door opener remote or one of those remotely switchable power outlets that might cause interference that causes your controller and WiFi to get disconnected.