I posted this on comp.os.ms-windows.networking.tcp-ip and somebody suggested taking it here... so here goes...
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Just finished 3 weeks of banging my head against the wall.
Windows 7 PC running an IP cam server at location A, radio link to location B where 4 IP cams are running.
Network Diagram:
One day, 3 of the 4 cams went down as far as the server was concerned.
The 4th cam, no problem.... ever. Yes, the 3 problem cams are the same make/model (HikVision DS-2CD2032-I) and the "Good" cam is a different make/model (TrendNet TV-IP672P). Both claim to adhere to the same POE standard ("Active 802.3af POE"... whatever that implies) and one of the
3 problem cams is located within 18" of the "Good" cam on with the Cat5e cable the same length.Here's a screen snap of all 4 cams under Ping -t The "Good" cam being in the center:
Go to the remote location, pull the Cat5e cable to the radio link, connect a laptop, start the 4 Ping -t commands, and all 4 cams are running a-ok.... the Replys just keep rolling off the screen.
To cut to the chase, after a loooong time of assuming that no radio link problem could be camera-specific, I re-booted both radios and the problem went away. And, just to put a cap on it, sometime later I was admiring my working cams when all 3 problem cams went offline simultaneously.... again, re-booted the radio links and they immediately came back.
Soooo.... my assumption is that it's the radio link.
The Question:
Can anybody postulate how 3 cams can have a problem and one cam can be running a-ok the whole time?
Or is there a flaw in my logic/assumption?