Timestamp on C320WS saving to SD card on H200 went incorrect suddenly after ISP WiFi went offline

Timestamp on C320WS saving to SD card on H200 went incorrect suddenly after ISP WiFi went offline

Timestamp on C320WS saving to SD card on H200 went incorrect suddenly after ISP WiFi went offline
Timestamp on C320WS saving to SD card on H200 went incorrect suddenly after ISP WiFi went offline
Monday - last edited Monday
Model: Tapo C320WS  
Hardware Version: V2
Firmware Version: 1.3.5

WiFi ISP went into scheduled downtime at about 5:34AM and came back a few hours later. Routers WiFi was still on. I think that's how C320WS still connects to the H200. H200 is wired to the router.
 

This screenshot (  https://ibb.co/dszFM736 ) shows scroll time and recording timestamp synced.  After ISP WiFi went down, recording timestamp is suddenly off by a couple of hours. ( https://ibb.co/HLCf55jx )

 

The time difference between the scroll time and the recording timestamp does not appear to be off by any amount of GMT time zone difference. 

 

H200 and C320WS and phone app are already on latest software versions.
Electrical power did not go offline at any time. 
Both devices are scheduled to auto update in the 6am to 8am time frame, not in the timeframe that the time stamp became incorrect. 
All device time zones are set to GMT+5:30. 

 

My question is - how can I prevent this from happening again, if I can. 

thank you for any solutions!

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#1
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3 Reply
Re:Timestamp on C320WS saving to SD card on H200 went incorrect suddenly after ISP WiFi went offline
Tuesday

  @cold_lion 

Hi,
Please confirm the following information for the reported phenomenon.

  1. Is the Tapo C320WS configured to connect to the H200 as instructed below?
      How to connect Tapo Wi-Fi Cameras with Tapo Hub

 

  2. When the ISP Wi-Fi went down, did you have internet when connecting to the router with an Ethernet cable? On the camera's Device Settings page, go to Network Connection to see whether it's connected to the router's Wi-Fi or the hub.

 

Best Regards

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#2
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Re:Timestamp on C320WS saving to SD card on H200 went incorrect suddenly after ISP WiFi went offline
Tuesday - last edited Tuesday

  @Solla-topee 

 

One correction:  When I say ISP WiFi went down, I mean no internet through the fiber to my home. The WiFi from the router was still ON as electrical power at home was not disturbed, it just didn't have any internet connection. Sorry, my mistake. 

 

Specific answers to your questions follow.

 

1. Yes, it is connected in exactly the same way.

 

I remember when I set up the hub as backup, the camera was still connected to the router. But at some point during the same night of this incident, the camera switched over to the Hub AP. It never switched back. I don't think that is a problem, but I'm just mentioning it. I have the camera set to auto reboot and it has been more than 24 hours from the incident. The camera is still connected to the Hub AP. Maybe the Hub AP has stronger signal to the camera. 

 

2. Did not have internet.

 

https://ibb.co/NnjqGKZf


https://ibb.co/RpHNxvvz

 

Thanks!

 

 

 

 

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#3
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Re:Timestamp on C320WS saving to SD card on H200 went incorrect suddenly after ISP WiFi went offline
Wednesday

  @cold_lion 

Hi, 
Please try to remove the SD card from the hub before the camera loses internet connection, then check whether the camera has the correct date and time after losing internet connection on its Live View page.

 

Usually, when the camera is connected to the internet and can access our cloud server, it will automatically synchronize the time with the NTP server, displaying the correct date and time. However, if the internet is disconnected and the video is saved to an SD card, the camera's date & time will be affected by the internal clock of the SD card, the method of writing files, and other SD card design factors, which the camera cannot control.

 

To ensure that the camera's date and time remain accurate, we recommend connecting it to a router with a stable internet connection. Alternatively, if you have an NVR in your home, you may save the camera's video to the NVR instead of the SD card to see whether it will display the correct date & time.
How to view Tapo camera on PC/NAS/NVR through RTSP/Onvif Protocol
 

Best Regards

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#4
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