Ever since 1.1.1 Build the 5Ghz Wifi keeps dropping off. It only gets fixed when the router is restarted. But within 24 hours it again has the same issue. 5Ghz simply goes missing and then comes and goes without connecting properly whereas 2.4Ghz is still available. Number of devices are less than 10. Up until 1.1.0 build everything was stable. And now after the latest update of 1.2.1 you can't also downgrade back and the issue is also not solved.