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Thus far everything keeps working. 7 days or 168 hours have passed since my last changes as I wrote on the 5th of June. The NVR is still on DHCP within the 192.168.2.X scope. I will wait until the end of this weekend and update later.

It's correct that the NVR internal switch uses the 10.1.1.X subnet for the PoE camera's. This always has been the case and never changed. I am not familiar with the Bridge Mode switch button on any switch. I assume you mean the Dahua NVR bridge mode which I need to search for. Haven't heard of...

@mat200 the logfiles are not showing unexpected reboots. Nope, it's not connected to a UPS but with the original power adapter. Wednesday I manually rebooted the NVR 3-4 times and kept the DHCP address. Let's hope that the changes of my last post have a positive effect. @bigredfish , all (2)...

@Teken loud and clear. Right now it’s on DHCP because the router of the Dutch ISP has a hardcoded DHCP scope, so changing to 192.168.1.X is not possible. What I did do is: removed NTP server removed local time sync. Maximum is 168 hours (7 days) keep the NVR on DHCP without MAC reservation...

That makes it unreachable because it’s outside of the DHCP range because the router uses 192.168.2.X addresses

Thanks @Teken for your response. I will set it to DHCP this evening as the NVR sits at a friend’s home. If the issue comes back I will put it back to the factory default settings because a MAC reservation did not yet have any effect so far. The ISP router did not reboot and yet lost connection...

NVR just lost the connection. The static IP that I’ve set just jumped back to 192.168.1.108. It’s really frustrating me….

Strangely I just checked again and the NVR is working. The Playback function delivers time-outs however there are no outages visible from the PoE camera’s. Let’s wait some more time. I’ll keep you all posted and TonyR thank you for your quick responses so far!

Yes, the existing admin credentials but also the seperate users stay intact. edit: also the time zone settings, name settings of the NVR and PoE camera’s stay intact. Just like other settings.

Unfortunately my last changes did not resolve the issue. After using different static IP-address on the NVR it changed back to the factory default of 192.168.1.108 instead of 192.168.2.250 after TonyR’s advice. In the log files of the NVR I’m not able to find any logs or information related to...

I’ve just updated the IP-address to 192.168.2.250, and the DHCP range is 192.168.2.0 to 192.168.2.199 Usually it loses its address after 48 hours. I will update Sunday evening. *edit: no MAC reservation for the IP-address 192.168.2.250, only a static IP on the NVR.

@Tony The router's DHCP range is 192.168.2.1 until 192.168.2.199. The NVR has a static IP-address of 192.168.2.108. I will try to set it up with the IP-address 192.168.2.250 for example and post an uupdate if that worked out the way you described.

Hi SpacemanSpiff, thanks for your reply. I only make changes directly on the NVR connected to a TV locally. Without use of a browser or network connection. This is for me the only solution to manually change the IP-address of the NVR. When changed I use MS Edge or Chrome to get access again to...

Dear all, After some search on several forums I am not able to find an explanation why the NVR is losing it's static IP-address. The NVR is a: DHI-NVR2104HS-P-4KS2. What i've done so far: set static IP-address manually and directly on the NVR using USB keyboard and mouse (192.168.2.108) Make...