camera off line

[wullboy]

I have 4 cameras on my network, and 2 of them are not showing, why would this happen, why 2 & not all of them, i have static ip addresses on them, so, why would they 2 even go off line..???

 

[Kieran]

That could be any number of reasons, we'd need to know some more information to help.

What cameras are they?
How are they all connected to your network?

 

[wullboy]

The make is Zxtech, and they are all poe cameras with ethernet cable attached to a netgear ethernet hub, so why would 2 be ok and the other 2 not.. ??

 

[Kieran]

It may be an issue with the cable - would you be able to check one of the cameras with another network cable, preferably one you know works fine?

 

[wullboy]

Hi, no, this is not possible m8, i have had this issue before, [ when all 4 were of-line ] and it has corrected it`s self, [ i may have rebooted the router, or something along that line ] The sheer fact it is only 2 and not 4 had me wondering why, as i said, ive had this issue before, and was trying to get to the bottom of it

 

[Kieran]

Ah okay. Your cameras are not a manufacturer I have experience with I'm afraid, but my first thought was potentially a cabling issue, especially if they're mounted outdoors, as this tends to be the main cause of intermittent camera dropouts.

Power cycle your cameras and the router perhaps.

 

[wullboy]

Cheers m8, yes a reboot of the router brings them back in, [ have done this before, so i know it works..but ] i`m wondering why they do this, why 2 & not 4.. [ why at all ?? ]cheers anyway m8