@MR.S sorry! I have the AC750 WiFi Range Extender, it's for my work computer setup and I did have IT remote in to try and check if drivers needed updating or anything and they said there weren't. The...

The red dot in front of the 2.4GHz wont resolve with anything. Reset my router, modem, computer, and the device, multiple times. Checked for updates, etc. and nothing is working. I don't really know...