After signing an NDA I was sent a beta firmware version that made a huge improvement. Like other owners of the RAX120v2 I was experiencing many reboots. After the beta firmware the RAX120V2 went for over 4 days with no problems. Then while streaming content everything lost network. I checked the router and it seemed fine. After a few minutes I was able to reconnect and logged into the router. The uptime indicator does not show that it rebooted. It is not clear what happened but just like a reboot everything was kicked off and then returned. While this is concerning having it happen just once after 4 days is a huge improvement over what I was seeing. 

Lets hope that with this beta firmware version they have identified the underlying problem and when the firmware is officially released they will fix this issue once and for all.