CPU 100% usage after power cut - RT-AC3200

[EnF70]

I got this a couple of times already, with older versions and with 380.68.2.
After a power cut the router reboots faster than the Virgin Media modem (bridge) and it gets into this state.
CPU is 100% on both cores and the router overheats, I think after some time nothing works, a reboot of the router fixes the issue.

First few processes in the top output are:

Mem: 96380K used, 159192K free, 928K shrd, 4780K buff, 15348K cached
CPU: 27.5% usr 11.0% sys  0.0% nic  0.0% idle  0.0% io  0.0% irq 61.4% sirq
Load average: 2.44 1.45 0.64 3/100 2334
  PID  PPID USER     STAT   VSZ %VSZ CPU %CPU COMMAND
  501     1 admin    R     1640  0.6   0 47.9 /bin/wps_monitor
 1643     1 admin    R     1172  0.4   1 43.7 miniupnpd -f /etc/upnp/config
  491     1 admin    R     1260  0.4   1  2.8 protect_srv
 1108     1 admin    R     6056  2.3   1  1.7 /etc/openvpn/vpnserver1 --cd /etc/openvpn/server1 --config config.ovpn
  924     1 admin    S     2048  0.8   0  1.1 avahi-daemon: running [RT-AC3200-C330.local]
  515     1 admin    S     6656  2.6   1  0.8 httpd -i br0
    3     2 admin    SW       0  0.0   0  0.4 [ksoftirqd/0]

I can disable WPS (I am not using it anyway) and try again...

 

[thelonelycoder]

I can disable WPS (I am not using it anyway) and try again...

That's highly advised, also disable UPnP in the WAN settings if you want to make your router more secure.

 

[EnF70]

Decided to do a Factory reset as those two processes were still using a lot of CPU even after a couple of reboots.
So the issue might not be related to a power cut or to the order in which the modem and router rebooted.