The problem occurs when few active hotspot users connect via wi-fi
For example. When 5 people are connect to hotspot, sometimes CPU usage dramatically increased to 100% by “flash” and a little later the router reboots by watchdog
wireless clients is a laptops, but through wds repeater (dd-wrt with MT support) All works fine. a cpu usage about 20% but suddenly increase to 40-100% and router can’t response properly. maximum traffic through wlan is not more than 4 mbps. and yes, the issue repeats often.