Hi all,

We have  OpenWRT AA r42171 running on Alfa Networks Hornet-UB device. The problem is that router get hanging sometimes after a period of time (it stops WiFi access so that WiFi network does not appear even on list available WiFi networks on the WiFi client). If attaching serial console to the router in this state then just nothing appear and console screen keeps black.

What could be a reason for this and how can we debug?