Hello everyone,

I'm experiencing a bizarre issue with my 4 cameras. All of them, connected via a mix of wired (3) and WiFi (1), suddenly started exhibiting the same problem:

- Using Tapo app,when I play videos under [Playback and Download] it starts for 1-2 seconds, then freeze for 2 seconds, then fast-forward to the end.

Here are the details:

- Camera model: [Tapo C520WS]
- Connection: 3 cameras via network cable to a network switch, then to the internet router; 1 camera via WiFi
- Internet: 50Mbps download, 20Mbps upload fiber to premise (stable, no changes)
- Firmware: Updated on all cameras

- I use Tapo care saving on the could not on SD card for all of the cameras.

- Recording at 2K quality 
- Restarted cameras, switch, and router multiple times

Interestingly, about 2 out of 10 videos download normally, while the rest exhibit the issue.

The cameras were working fine for at least 2 months before this sudden issue arose. I've tried troubleshooting, but I'm stumped.

Has anyone encountered a similar issue? Any suggestions or solutions would be greatly appreciated!

Thanks in advance for your help