C210 Hardware version 1.0 Firmware 1.3.14 WiFi connection lost.
Got four C210 camera’s. After the last firmware update from 1.3.11 to 1.3.14, all of them will lose the WiFi connection about 2 times a week. 
The led on the camera is red and on the Tapo app its off line. Only solution is to power cycle the camera. Luckily the sd card is still recording and all event are stored also..
Run the App on a different Android phone. It also shows its off line.
Is there a way to get the 1.3.11 version back again ?. this version has run for months without any problems. 
Or are there plans to update the 1.3.14 to solve this issue ?
Thanks @Solla-topee for your response…
- Yes, the camera’s are connected directly to the router's Wi-Fi
No change in setup in the past months and did work fine with version 1.3.11
- The RSSI value of the C210 is -27 on another C210 its -55, the other two have similar values between -27, -55
- Yes, switch the auto reboot on. If it lost its Wi-Fi connection, the next day its operational again because of the reboot.
Hi @Solla-topee
Thanks again for your responce..
1 : I have the TP-Link TLWE841N
https://www.tp-link.com/nl/home-networking/wifi-router/tl-wr841n/
Hardware version 14 Firmware : 0.9.1 4.17 v0001.0 Build 200903 Rel.58674n
2 : Reset one of the C210 > Done it and switch logging on.
Switch it to a different WiFi…. Will leave it for now.. It runs fine on the current WiFi network with the previous firmware version.
3 : Switched the log function on for the 4 C210’s…
See what happens …
Hi @Solla-topee
One of the C210 got a red led on. But … its still online in the app, and I can see live pictures.
Auto restart set on @ 03:00 – 03:30 Before the auto restart its green, so the error (red led) must be generated a few hours later..
Check the logging setting, but its switched off again (maybe due to the auto restart). Set it to on last time.
Attached the log file… don't know if there is info that you can use.
Reset the camera via the app, and its led is green again.
Hi @Solla-topee
Set the router to DNS server to 8.8.8.8 and 8.8.4.4 …
But one of the C210 lost its WiFi connection again (offline in the app). So no luck in changing the DNS.
Took out the logging file … something funny there. The data is all Chinese text.
(Got some Chromcast and due to the DNS change they did not work anymore. Cleared the WiFi connection and reconnect again by entering the password again, this reconnect the Chromcast again)
In the meantime : Bought 4 of these TP-Link Tapo P115, so the problem camera’s can be power cycled to get them online again..