r7000 drops internet connection

If the firmware was at fault I would think all of the r7000 out there on the same version would be affected. I use a R7000 and just yesterday re-installed 1.0.4.18 and then manually entered my settings.
I don't use the USB port, genie, QOS or media sever. This is the first time I configured it offline using a wired connection for the whole process not just the FW portion.

As for the WIFI button, While I setup mine yesterday I pushed it for a few seconds and both radios turned off. I entered all my settings and rebooted and power cycled several times and the radios stayed off as expected. When I finished entering my settings I turned the router off and installed then powered back up then had to push the wifi button to turn on the radios. 24 hours later all is still good, VPN to work stayed up and 27 devices are all connected. I also have a AP at that opposite end of my 3000 square ft home and no devices jumped ship to it in the past 24 hours which if the WIFI was turning off I would see some clients attaching in the AP log.

Not all problems are FW related. I would and have numerous times suggested contacting support and getting a replacement.

Tell them it's dead and pay for a advanced replacement.