Nighthawk R7000 keeps restarting

So I bought this router about a week ago to replace a router that just couldn't handle all the devices we have. It worked fine the first two days and then started rebooting every now and then, the reboots have become more frequent now and after the second reboot the wireless stops working. The only way to get the wireless working again is if I turn the router off and then on again, and that's starting to become a hassle with the router rebooting more frequently. I had the 1.0.7.6 firmware installed at the beginning but have downgraded to the 1.0.4.28 hoping that would fix it since it has been recommended on multiple discussions. It still disconnected and caused the same problems. I've also switched the power from a brick connection to wall connection no luck. I have tried finding my problem somewhere else but have had no luck just similar situations, I spent a lot of money on this router so I would like to have it work without these problems. Please someone help me out.