EAP245 5.2.0 firmware

After updating 3x EAP245 (v3.0) to 5.2.0 there are several clients (various sorts, mostly at 2.4ghz) not connecting anymore or losing connection all the time.
I downgraded them to 5.1.0 and all is fine again.
I also have 2x EAP225 running at 5.1.6 and they seem to be fine as well.
So I think there is something going on with the 5.2.0 firmware version.
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What kind of clients are having this prooblem?
Please compare the SSID encryption before and after the upgrade, this is most likely due to the poor compatibility of these dropped devices with the new encryption method.
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@Vincent-TP
I have several Sonoff devices not connecting (mini r4 doesn't connect at all but several others have serious issues), homewizard P1 meter and funny enough also a TP link (tapo c310) camera goes offline as soon as I update. Also my zendure battery system is acting up when I update, loses connection at least once an hour.
Yesterday I updated 1 accespoint again and gave it a full memory clear and adopted again. Same problem, not connecting and after the downgrade to 5.1.0, all fine again.
It's 100% sure something in the firmware.
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Thank you so much for taking the time to post the issue on TP-Link community!
To better assist you, I've created a support ticket via your registered email address, and escalated it to our support engineer to look into the issue. The ticket ID is TKID250250276, please check your email box and ensure the support email is well received. Thanks!
Once the issue is addressed or resolved, welcome to update this topic thread with your solution to help others who may encounter the same issue as you did.
Many thanks for your great cooperation and patience!
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Did you receive the support ticket?
We are still waiting for your reply to do further investigation. Thanks.
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Vincent-TP wrote
poor compatibility of these dropped devices with the new encryption method.
What new encryption method? There is nu such change in the release notes. Problems like this could be prevented if the release notes would actually provide all necessary information.
Please provide release notes with all the actual changes.
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My self also recently updated 3 EAP 245 to 5.2.0 version. Tapo camera and few sensors at 2.5GHz is not connecting. So now I am using a alternate router for tapo camera. Please fix this issue
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The problem existing with EAP245 V3 5.2.0 is nothing do with encryption, tried with all encryption level, but tapo camera and hub are not connecting
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