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This thread was for the nvr5216-16p-4ks2. The most resent firmwares have solved the random camera name changes after reboot for this model. try this firmware on yours. (Deleted as it probably is not correct for the NVR mentioned) Actually here is a newer one. NVR4108-8P-4KS2/L As a safety...

Please state the full model of your NVR. Different NVR’s behave differently even with the same firmware.

Thank you

I'm not seeing it in the Dahua section on this site. Has it been removed or do you have a direct link?

I’m going to say no on these pins. They are labeled “H_Motor”

gotcha, glad you got it working

Wait, I thought your issue was not being able to downgrade the NVR firmware. Unless I missed something, your write up seems to be about updating chinese camera firmware?

I have seen factory reset resolve strange behaviors in the past

You should have v2 based on that manufacture date

No I don’t have this issue. Have you tried changing cam names from the NVR itself?

That has always been there since the inception of version 4. I thought you were talking about something else.

Where is the “name edit” box you are referring to located?

I don't see it in the photo you provided. Maybe look on the bottom side of that board or check the other boards? From my experience of other models it's usually 4 holes where a connector should be

Sorry for the late reply. I just saw this. I just downgraded normally from the NVR itself. Same way as if I was updating. But I have not tried downgrading from the versions you referenced. On another note, I always factory default before I do any update or downgrade.

What was the intermittent issue you were having?

Has anyone tried either of these two firmwares? If so, any improvement's or new features?

Update: I rolled back to an older 2021 firmware (210827) and it’s been over 10 days now with no random reboots. Will wait for another update before updating again. I really like the revised search date features in the 2022 firmware.

Check this thread for starters: https://ipcamtalk.com/threads/latest-new-nvr4xxx-4ks2_multilang_-v4-001-0000005-1-r-201126.52810/ Not sure that your NVR has that menu but it’s worth a look.

Are you updated to the NVR 4.xxx firmware?

Go to Maintain>System Info>then Device Status tab.

Did you ever resolve this issue? I am having the same. CPU usage on NVR608-128-4ks2 with only 30 cams connected. CPU usage between 85-99%

I suspect it may have something to do with the “emergency maintenance” feature that was added in this firmware. I have turned it off and should know better within the next five days or so

This is the fan https://www.amazon.com/gp/aw/d/B072JK9GX6?psc=1&ref=ppx_pop_mob_b_asin_image Current draw is minimal. It is being powered by one of the hard drive power connectors. There is no power loss at the source because yesterday it rebooted while I was watching TV and the television was...

Not overheating. I had modified my NVR with a fan on the CPU. It never gets over 51°C even on the hottest days. Before the mod it would run 71° On cool days. I’m keeping an eye on it and should know more in a couple weeks.

Wow, not sure what’s going on with mine. Both also have spotty recordings on the earlier dates. I formatted the drives so time will tell. Thanks for checking for me.

just out of curiosity, when you went back a month in your timeline did you find spotty or missing recordings at certain times on the earliest dates?

Thank you for checking that.

If you go to search and just click on every day on the calendar starting from today then going back day by day as far as you can, see if there are any black lines in the timeline. This is how I initially found them then I noted the date/time and went back to the log. This is how I discovered it.

Anyone else experience random reboots that occur every 2-7days? My system log says "shutdown" then above it says "Reboot with flag (0x01). I know that Dahua error code 0X01 indicates a loss of power issue but I have had no power outages (not even intermittent) and I didn't have this issue...

Ok that makes sense. That’s probably why I never lost my notifications. I’ve always had 8.8.8.8 and 8.8.4.4 respectively as my primary and secondary DNS servers