3 cameras get out of sync after a short time

[jazzrat2000]

Just got the system, I have 3 cameras... after a short time, say 1/2 hour, they are registering different times by an increasing number of seconds. Can this be fixed? I have to shut down and start up to get them back together. I am watching them on my computer... I should add that they aren't the same as the time in the upper corner even when they are together. I am a newbie, so speak slowly...

[tkmbe99]

You have to use ntp. Are you using NVR or only cameras?
I'm using an NVR system and it seems that this one will set date/time on camera OR record his time...
If you use only cameras you have to synchronize each camera with an ntp server.
This can be done (at least on my cams) in System / Generall / Date & Time
(second tab in generall!!) I had to search a lot to find again....
You have to enable synch with ntp server therein!

Hope this helps

Greetings

[jazzrat2000]

Thanks, I don't know what all that means, but I do have the manual and will check it out!