My deco was recently upgraded. I have 4 networks using the same deco platform. for whatever reason, one of the networks didn't like the upgrade as all devices work on it except the ip cameras. i thought maybe their service was down but like the deco platform, the same ip camera platform is on the other networks. ive tried reseting the router, on and off, same with the cameras, did a modem reset via ip provider and no luck. before i factory reset the ip cameras i  tried to see if i can reverse the firmware upgrade but deco and many before me, are not able to do so. tp link, whatever you did, please enable a reverse feature as this is not the first nor last time a user will ask of this.