@Kleber_Bueno 

Hello,

With regard to the DNS server, you can access the internet with your current DNS server, but the C200 has a built-in NTP server and it needs to get time from that NTP server.

It is possible that your DNS server may fail to resolve the NTP server, please try to change the DNS server on your router to 8.8.8.8 and then reboot the C200.

If it doesn't work, you can change it back to the previous address right away and have no effect on your network.
 

Hi @Brook 

I did it as you suggested.

DNS1 to 8.8.8.8

DNS2 8.8.4.4.

But unfortunatelly still not working.
 

Anyway thank you so much for answering this.

best regards

Kleber

@Kleber_Bueno 

Hi, sorry to respond late.

Can you please send me the logs saved on the SD card then we can further analyze it?

Here are the steps to save the log into your local SD card:

1. Make sure there is an SD card inserted into the camera slot and detected to work fine on the camera. If not, please format your SD card on the camera app first and check to ensure the SD card status is good;
2. Go to Camera settings-Advanced Settings-Diagnostics, enable it;
3. Try multiple times to load the camera live view, then navigate to Me-Help/Feedback-Feedback and select the problematic camera on the app and send us feedback. Or you may insert the SD card into your computer and send me the whole "diagnose_log" file. We will then ask our engineers to investigate further with the log.

Thanks.

Hi @Brook 

Thank you so much for the effort.

I am sending you the diag_log file extracted from SD card.

Please let me know anything else you need.

thanks

Kleber

@Kleber_Bueno 

Hello, thanks for the feedback.

As per the log file you provided, it seems that the camera still has a hard time to connect to the NTP server, can you please confirm again if you changed the DNS server on your router WAN but not LAN? If possible, please show me the screenshot, thanks.

BTW, can you please connect a computer to the same router and try to nslookup these two domains n-deventry-dcipc.tplinkcloud.com and n-use1-device-api.tplinkcloud.com, then show me the results? You may press the Windows key and R key to open the Command Prompt on your windows computer, then type in nslookup n-deventry-dcipc.tplinkcloud.com and press enter, show me the result. Do the same for the other domain.

Good days.

Hi @Brook 

According your request, I have taken screenshots for DNS configuration on my router and also I have got NSLOOKUP results as you can see below:

C:\Users\klebe>nslookup n-deventry-dcipc.tplinkcloud.com
Servidor:  UnKnown
Address:  192.168.0.1

Não é resposta autoritativa:
Nome:    n-deventry-dcipc.tplinkcloud.com
Addresses:  34.253.152.68
          52.210.177.125

C:\Users\klebe>nslookup n-deventry-dcipc.tplinkcloud.com
Servidor:  UnKnown
Address:  192.168.0.1

Não é resposta autoritativa:
Nome:    n-deventry-dcipc.tplinkcloud.com
Addresses:  34.253.152.68
          52.210.177.125

C:\Users\klebe>

thanks

Kleber

Hi @Brook 

Sorry the second nslookup command output I've put it wrongly.

The correct output is :

C:\Users\klebe>nslookup n-deventry-dcipc.tplinkcloud.com
Servidor:  UnKnown
Address:  192.168.0.1

Não é resposta autoritativa:
Nome:    n-deventry-dcipc.tplinkcloud.com
Addresses:  34.253.152.68
          52.210.177.125

C:\Users\klebe>nslookup n-use1-device-api.tplinkcloud.com
Servidor:  UnKnown
Address:  192.168.0.1

Não é resposta autoritativa:
Nome:    n-use1-device-api.tplinkcloud.com
Addresses:  34.225.99.1
          3.224.229.16

thanks

@Kleber_Bueno 

Thanks very much for your update, we would like to investigate this issue personally via email.

Please check your email box and respond with more details, our engineer will help follow it up, thanks.

@Brook 

Do you have any update about this issue? 

I have 5 cameras and all of them have different date-time

@Kleber_Bueno 

Try Onvif Device Manager as a workaround .