So I have probably about 150 mikrotiks gateway in the field. They all run great however every so often one or two like to max there cpu out. I have no idea why this would happen or where to look for this specific issue as it only seems to happen on certain GW and there configs look the same as the rest of my GWs.
The first process that will max out one is the L7-matcher this happens on only one of my GWs. I have trued everything to get it to stop and can not. I have turned off my hotspot all firewall rules and it still just sits there. I even disabled my LAN ports so my only connection was the wan and still L7 was maxing out my cpu.
The other process is the DNS I have compared the GW to other another one with twice as many active useres and everything looks the same so I am not sure why DNS would be maxing out