But the problem is there that when you want to upgrade over WiFi the message will appear that this Firmware is the last but it is not, so you should update the firmware by yourself and after that initiate hdd and the last step is to swith off from power. And after these steps you will have no...
Upgrade your nvr to the last firmware and the problem definitely will be solved (4.30.085) and also cameras if possible. Mine was solved using this solution completely and no abnormal shutdown anymore.
Hi james
this is not hardware or firmware issue
this is just about your network
check the MTU parameter in your internet service provider to comply with the MTU in your NVR and make both of them the same number and after that the NVR reboots and will be OK after that