Someone please help my cameras go down all of a sudden

[jason.berna]

So since October I am running 2 hikvision dome cams and 2 foscam bulliets
All Poe
Using a net gear gs108p switch
Windows 8 pic dedicated to the cameras
And apple AirPort Extreme is the router
No problems at all since installed 9 months ago
All of a sudden the 2 hikvision cameras loose connection after a few hours If the router is plugged into the switch
The 2 foscam remain working
If I unplug the internet line they come back up on there own. Just out of the blue this happened and can figure out why

I have tried different cables, different ports on the switch
1 camera at a time
No matter what I do they lose signal and this is what I get
I changed ips and ports
Have tried everything I can think of
Why only the 2 Hik cameras
And the foscams stay working

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[jason.berna]

I'm running blue iris on the pc
The cameras are down on BI As well as the app

Even the hikvision software does not see them online and active


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[alastairstevenson]

Does your Apple router have automatic firmware updates?
A bit of a long shot, as they say. If your Apple router has IPv6 enabled, and you don't have any IPv6 devices on your LAN, see if you can disable IPv6 on the router and see if that makes any difference.

 

[jason.berna]

I'll do that now and disable it
It's weird
Nothing has changed been working great


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[alastairstevenson]

If you do a forum search for IPv6 there are several threads with Hikvision cameras rebooting where the workaround of inhibiting IPv6 made a difference.

 

[jason.berna]

So far that worked I disabled IPv6 in the router
I wonder how it got turned on
Weird

Thanks


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[alastairstevenson]

IPv6 would normally be active by default on the router, but it's probably rarely used domestically. That will change over time.
But there seem to be instances of some sort of issue with Hikvision cameras and Airport routers.