Troubleshooting Tapo c120 cameras all experiencing choppy/laggy RTSP streams after 1.3.1 firmware

I have 8 of these cameras, all purchased and set up about 1.5-2 months ago. I have them all recording to sd, and also using my synology nas / surveillance station to record/stream them via RTSP (tcp).
Before the 1.3.1 firmware, they were working perfectly. Nice, smooth real-time views, however, after the 1.3.1 update they are showing a frame every 2-4 seconds, and randomly lagging behind for hours.
Changing hardware acceleration did not help with the quality.
Within synology ss, it 'found' them with onvif and I do have them set up as Tapo c120 cameras in there. I've also removed, then tried adding as generic onvif.
The c110s and c210s I have are still running smoothly in synology ss in 'live-view'.
Viewing the c120s from the tapo app in live-view seems fine. For me, it's something with the RTSP.
I've seen others (on reddit) with similar issues when trying to view with RTSP.
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Hi @Solla-topee and @Riley_S , do have any update on this issue? Also it seems that the email tab is removed and it's not possible to send a support ticket to get the custom beta firmware.
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The C120 has a new FW 1.3.2 dated at the end of June that may contain the test fixes?
https://www.tp-link.com/us/support/download/tapo-c120/v1.60/#Firmware-Release-Notes
Have you tried this yet?
Or are you like in my situation have the C121 and for whatever reason 1.3.2 isn't available for when I thought the internals are identical with a different color.
https://www.tp-link.com/us/support/download/tapo-c121/#Firmware-Release-Notes
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@S_L I have a few C120 but 1.3.2 isnt available yet
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@gchle
Interesting. I would've expected to see it pop up in the app if it's been a month since it was published. Guess it's just something we'll have it wait for since we can't just grab the file and load it manually.
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Just looking for an update on when this is going to be released for auto download to the cameras. It's now been nearly 2 months since it has been published in the release notes but is still not generally available
Thanks. Darryl
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Also looking for when it will show up as an update on my C120. I am in Canada, is this only available in the US? I am finding the rtsp stream randomly goes nuts with Frigate causing a huge FPS and impact to the server.
would love to try 1.3.2 or go back to 1.2.3.
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It's late for me to update but the Tapo app is showing 1.3.2 is available for my C121. Support site for the C121 hasn't been updated to reflect this.
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I see it today for my C120 as well. Upgrading now, will see how it impacts stability after a week or so.
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