Archer C9 V5 this week started rebooting randomly. I already replaced power supply from different unit (I used two other power supplies - one with 12V and 2A output, and another with 12V and 2.5A), but this doesn't helped. I refleshed firmware, used compressed air to remove dust from inside (nothing really get out, so it's probably clean inside). I saw many similar problems - what happened? It's insane!

Also I have this error in LOG, but I saw that this is "normal" (creating software that in normal condition output errors to log is not normal, but we are on tp-link, so here everything could be normal):

[946] Config importing failed