A couple of days ago, I was plugging some IP cameras up to an existing network.
The TR where these cameras would be connected only had a stack of two switches.
If I plugged the camera in any of the two switches, these would reboot themselves most times immediately after I plugged the camera in.
After a lot of trial and error, I decided to plug another camera and seemed not to have any issues- since the network was in operation I didn't meddle with it any longer and just left it as is. Thing is, I then tested the "faulty" camera onto another switch and, to my surprise, it worked and wouldn't recreate the issue, no matter how many times I plugged in and out.
What could be the cause of this? I asked the customer about this and they reported to have this issue not only with PoE devices but with standard ethernet devices as well.