EAP783 dropping 2.4 GHz clients after a couple of weeks

I have multiple SSIDs set up on my EAP783 on firmware 1.0.14 using controller version 5.15.8.2.
3 SSIDs are 2.4 GHz only, 1 is 5GHz only, and the other 2 are 2.4/5/6 MLO.
After getting things set up the first time, everything was working just fine for a few weeks. Then I got an alert from one of my devices that it had gone offline. I scanned networks with my phone and saw all the 2.4 GHz SSIDs broadcasting, but when I checked the client list in the Omada app I saw that all of the 2.4 GHz clients were gone, with only 5/6 GHz clients remaining. I rebooted the EAP783 and things went back to normal, but I came across this ticket from last year showing nearly the same behavior.
Support basically brushed it off and said it was due to poor signal, but since several of the clients in my situation are in the same room with 20ft line of sight to the AP (RSSI around -40 dB), I know that is not the case here. Also, PMF is disabled on one of the 2.4 GHz SSIDs, and only set as capable on the other two, so I don't think PMF is playing a role here.
Has anyone else seen this, or has this been investigated further since that ticket?
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Just to update, it looks like I spoke to soon about the beta firmware. I've been doing more testing and re-setup all my devices and it seems like the 2.4ghz issue only exists on the 1.0.14 firmware. Both the 1.0.10 and 1.1.90 beta have been great with no 2.4ghz disconnects. So hopefully the next stable release is the same. Thanks for all your help getting to the bottom of the issue.
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Have you tried the new beta firmware from the link below? I was also struggling with a similar issue, but updating the firmware solved the problem.
https://community.tp-link.com/en/business/forum/topic/736358
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@Vincent-TP I haven't tried it yet, but I will give it a try soon! Thanks for pointing me to it.
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You’re very welcome! 😊
If you encounter any issues or have questions while testing it out, don’t hesitate to reach out—we’re here to help every step of the way.
Good luck, and we’re excited to hear how it goes! 🚀
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@Vincent-TP I have also been having issues with 2.4ghz dropping connection (mainly noticed on my TP-Link Tapo Cameras) since updating to 1.0.14.
I briefly updated to the beta which didn't seem to help. Went back to 1.0.10 firmware and not a single disconnect.
My AP runs in standalone mode and I reset back to factory settings after each firmware change.
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Hi @Jeff.W
What's the model number of the tapo cameras? Please check if there is any new firmware for the tapos.
How about other 2.4G clients?
Did you enable MLO?
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@Vincent-TP I have a C210 and C120 connected to the 2.4ghz network. Both are on the latest firmware.
I have separate 2.4ghz, 5ghz, 6ghz and MLO (5ghz+6ghz) network setup each with their own SSID with the cameras only connected to the 2.4ghz one.
The two cameras are the only devices connected to the 2.4ghz network.
Its been about a week since I reverted back to firmware 1.0.10 and there hasn't been a single disconnect. With the 1.0.14 and beta firmware they would start disconnecting within 24hours.
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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 TKID250321661, 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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Just to update, it looks like I spoke to soon about the beta firmware. I've been doing more testing and re-setup all my devices and it seems like the 2.4ghz issue only exists on the 1.0.14 firmware. Both the 1.0.10 and 1.1.90 beta have been great with no 2.4ghz disconnects. So hopefully the next stable release is the same. Thanks for all your help getting to the bottom of the issue.
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