I have three mikrotik routers. The routers are all under UPS. My routers are: RB4011iGS+RM, RB5009UPr+S+IN, hAP ax³. Often after a firmware update (last 7.19) the first two routers froze. It was not possible to log in. I had to do a reset
I’ve read on some forums that this happens to others. Some suggest rebooting it before updating the router. I’m starting to suspect that it’s ADLIST.
I am Italian and I speak Italian, uos google translator. Sorry if I am not precise.