I'm running 5 cameras, 2 wifi cameras in the house connected to my router and 3 wired Dahau cameras connected to a managed POE switch in my garage as is the BI server. Yesterday we had a major thunderstorm pass in our area, for a good 45 minutes it was constant lightning strikes and thunder. At one point the electricity blinked and then cutout completely. The electricity came back about 30 min later and when I checked 2 out of 3 Dahau cameras on the switch were no longer connecting. I thought maybe I damaged the POE switch or the cameras during the lightning storm. Long story short, nothing was wrong with the switch or the cameras but for some reason the Blue Iris config for those 2 cameras had a different IP set. I know all the IPs for my cameras, and they are statically set and didn't change. What changed was the IP address in the BI configuration for each those cameras. One IP ending in 43 changed to 41 and the other was 51 and it was changed to 53. All I did to get my cameras back up was to change the IP in the config back to what it was originally and everything is back up and working again. Not sure what happened there, makes no sense to me.