So I setup NetTime, opened UDP port 123 on Windows firewall, and set each camera to use the NTP server. The address as you can see from image is my BI NVR address. What am i missing here? The cameras never update?
What is the purpose of this command? Other than it is cool and could be very useful for other things... The windows machine IS the NTP server. Why does it need to be listening? I don't have any other machines. I only have the NVR and 24 cameras...i am not sure, but first see if the windows machine (192.168.0.10) is listening on 123. Open a power shell as administrator ad run the following command. Can another windows machine (ie laptop) get NTP from the ntpd windows server, but not the cameras? is 123 open in both directions through the router so that the demon is synched?
netstat -anb| findstr /i "listening"
The nerd in me has always wanted to attach a compatible GPS receiver to one of those to make it a Stratum 1 time server. But it just isn't worth the hassle!If you're looking for a dirt cheap standalone option, a Raspberry Pi makes a great NTP server. I picked one up to set up an NTP server that all my cameras and NVR sync to. It seems to keep the timestamps for the cameras nicely in sync. With the default camera NTP settings I was setting a few minutes of drift between cams.
This was my exact same thought. Its tempting, but then I think of where I'd locate the antenna for decent reception, and it ends up becoming more of a project than its really worth I'm happy enough having all the cameras simply synced to one another.The nerd in me has always wanted to attach a compatible GPS receiver to one of those to make it a Stratum 1 time server. But it just isn't worth the hassle!