Q: ATV4 Can't See WiFi Networks
Every once in a while my new ATV4 (TvOS 9.2.1) will lose the WiFi connection. When I try to reconnect it "sees" no WiFi networks at all. My other devices (MacMini and several iPhones and iPads, smart TVs, etc.) have no trouble finding my WiFi network or those of my neighbors. The ATV4 is almost line-of-sight with and about 3 meters (ten feet) from my router. My other ATV4, which is behind two concrete walls, never loses the WiFi connection.
Restarting the new ATV4 always corrects the problem, but it seems that I shouldn't have to restart the ATV in order to get it to see available WiFi networks.
Posted on May 26, 2016 6:32 PM
Look for interference at the ATV location, see Potential sources of Wi-Fi and Bluetooth interference - Apple Support
The interference may only be a transient, when your neighbor watches a movie, say. But their network should be visible all the time.
Change WiFi channel, if you can.
Check for cordless phones.
Switch to a 5 GHz network if possible.
Try changing your router WiFi settings to WPA2-AES only, no TKIP. Routers often default to a AES/TKIP mode which ATV doesn't handle gracefully.
AES may be called CCMP at your location.
Posted on May 27, 2016 4:36 AM

