Nighthawk X4S R7800 5G going in and out

Hello,

I purchased a Nighthawk(R) X4S R7800 just over 5 months ago and started having issues with it within the last few days. The wireless started going out, I thought it might be the ISP but all wired devices are working normally. 

I've noticed that if I connect to the 2.4G radio that I don't have any issues. 

I can connect intermittently to the 5G radio but it always disconnects and tries to reconnect over and over again. This is happening with multiple devices: laptops, phones, tablets, apple tv, xbox, etc. They all worked without any issues a few days ago. 

I've upgraded to the latest firmware to see if that would resolve the issue but it didn't. 

I reset the router to factory defaults and restored from backup and that didn't solve it either. 

Any ideas?