Hi, I am using deco about one week and unstability of the system is horrible. I've tried everything. Set other deco as main, reboot, check the firmware. Firstly i had decos connected via ethernet cable, every 15 minutes it was loosing internet signal for 30 seconds - leds turn red. When i was pinging the main deco it was showing "request timed out". 

Then I've tried unplug the ethernet cable on second deco to see, if it would change something. It works fine for one day...The only two things that have changed, speed of second decos, from 250 mbit/s to 40-80 mbit/s  and when it drops the led not showing red, but still green (in windows still "request timed out"). In deco app on second decos it showing wifi symbol, so I suppose its connected by wifi backhaul. That drops happening nomatter which device I am using, PC connected via ethernet cable, or just phone using wifi..Is there any solution? I thought if I spent that much money, it would work great, but it doesn't...