I've had this issue ever since I bought this router. It is in AP mode and hooked to the ISP Modem/Router. On the Asus router is also a tv-box connected. Whenever someone watches tv on said box, the Wi-Fi becomes very unstable/borderline unusable. Running the latest AsusWRT-Merlin (386.10), the issue is also present on OFW. Usage peaks at +- 20 %, so it's not overloaded. Does anyone know potential solutions or what causes said problem? Thanks in advance!