I use this extender only connected via Ethernet to my PS4 in order to have better bandwidth (since my console only has a 2.4ghz antenna). The RE200 gives me good download/upload tests but when gaming every 5 minutes I get packet loss (just 1 or 2 seconds with 1-4% packet loss or low bandwidth).
I tried everything and this only happens when the console is wired to the RE200, if I move the console to the other room and wire it to the main modem, no issues!
The main modem is just 4 meters away from my repeater, the theter app location tester says its on a perfect position.
I'll read you.