I've been experiencing an odd problem after installing my new GPU (RX 570). Whenever I launch a game my WiFi connection goes from "Connected, Secured" to "Connected, No Internet" or loses the connection completely. Before I had my GPU and was using the iGPU, the same thing would occur if I plugged in a USB Device (Thumbdrive, etc), although games worked fine back then (at a much lower fps obviously). If I run the Windows Network Troubleshooter while a game is running in the background it fails to resolve the problem and says "Windows was unable to automatically detect this network's proxy settings". I've also found that the same thing happens when running a GPU benchmark, for example Unigine Heaven
Another thing I find odd is that if I connect to my mobile hotspot, all of the problems disappear and everything works perfectly. This would lead me to believe it is a problem with my router-modem combo, however it works perfectly fine with every other device in the house.
My USB WiFi adapter is the DWA-171
Motherboard: Gigabyte B450M S2H (in case it matters)
The network that I am connected to is 5GHz
Due to circumstances, Ethernet is not an option
I don't think it is a range/signal quality problem since it worked before I had my GPU.
What I've Tried:
Restart modem-router combo, both through the web interface and by unplugging it.
Re-install USB WiFi adapter drivers and my motherboards LAN drivers.
Uninstalling the USB WiFi adapter from Device Manager and re-installing it.
Doing a full network reset through the settings app.
ipconfig /release, ipconfig /renew
netsh winsock reset
netsh int ip reset
Different USB ports (USB 2 and 3)
Setting the WiFI Adapter to Max Performance in power options
Not allowing windows to turn off the WiFI adapter in power options
Using the whole D-link suite and connection manager.
Updating motherboard BIOS to the newest version (F50)
Re-installing Windows 10
I've pretty much narrowed it down to if my GPU is under load, my WiFi will drop out.