Hard headed LOL - some cameras will be buggy with HA, so saying "
if it were HA causing the issue, all cameras would in turn show the issue with it enabled" is an inaccurate statement
. It can be one camera (and even one of the same model as it could be a different chipset for example between your two "identical" cameras) that is whacked out using HA with all the remaining cameras using HA just fine.
Many here have that problem camera that just doesn't like HA. Sometimes BI will recognize that and turn HA off for the problem camera, and sometimes we just have to turn it off ourself.
Hopefully you tried all cameras without HA to see if that fixed the problem. Like I said, for 3 cameras and your 9th generation CPU, HA isn't going to make a big impact. GPU usage with HA is probably 1% or so.
No signal - far right column of your Camera Status tab. The problem camera at this point had been online for a whopping 31 minutes and had 30 Loss of signals (but all of your cameras are showing loss of signal)...like I said, it could be nothing, or it is a power or setup issue that BI is taking an exception too and this particular camera is more susceptible to fluctuations than others...just because they are identical cameras doesn't mean much - as you saw the problem camera was using a lot more power than the other - that could be due to the scene differences (although they were both basically looking at the same thing) or maybe a different chipset between the two, or a variety of other issues.
As part of troubleshooting, I would put the BI computer and the cameras on the same switch temporarily and see if the No Signal goes away.
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Sometimes simply deleting the camera from BI and adding it back can fix a lot of problems. Probably worth a try as well.