This sounds promising. The only problem that I now have is that I have no idea how to actually upgrade firmware. I've managed to download it... (hopefully the right version) but I am sort of not sure what to do next.Hey David,
I've had a similar issue (except for the Texecom element), and I think what Colin suggested (i.e. reset the whole system) makes sense except that I would also recommend that you upgrade firmware on each device.
I think what often happens is that certain devices are plug and play 'PnP', meaning that they obtain IP addresses the moment you plug a network cable or put them on your LAN, but others are not. The conflict arises when you move the system offline and then try to put it back on.
The devices that are PnP would obtain new IP addresses but the non-PnP would retain their old 'IP mapping and directions' that is where they send / receive signals to and from.
My guess in you case would be that you have not upgraded firmware on your Hikvision devices for a while, which is known to preclude them from being PnP. So as a first step - try to upgrade all of them (cameras + NVR). Depending on your NVR, you may be able to upgrade firmware on the cams via the NVR's virtual server. With older models, you may need to do it on a device by device basis.
If this does not work, check if your Texecom system is PnP. If not, you will need to manually input the new IP addresses.
This worked for me!
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