I have been on 386.5_2 for last 5 days no reboots, want to go to the latest to get security patches but wary of starting back with the suffering. A lot of people didn't have issues, that could be either our homes having some legacy devices or maybe a batch of AX82U's that exhibiting this behavior. I am using a well built 5A overrated power brick to power mine since day one so don't suspect power adapter issues. I am sure we will find issues with ver 386.7 reported in next couple of months, Asus releasing a couple of fw version in a jiffy in September hints at something that went wrong.