Yes, write to the support, they react very fast and will provide you with the firmware

For Chateau? Can you share it with me? I have issues too, I hope it will fix at least Wi-Fi issues.

I got today beta3 from Mikrotik, seems to be solved.. clients are connecting correctly.

Well I also have this router and there are some problems.. But, when I was choosing the router I did not read nothing about beta version of firmware on page of seller (in my case czc.cz) So I did not expected that it has only beta firmware and I will have to solve, that the wireless clients are unab...

I have same problem with Chateau 12, and as written above, the solution is to disable and enable wifi again. I already wrote to support, so hope, they will provide new release soon.