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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I still run the old firmware because the latest build simply is a mess..
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Do you also have the same experience as others, where IoT clients won't connect stably?
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@Vincent-TP it's a big mess. A lot of clients lose connection or won't connect at all. 100% sure the firmware. All 3 Eap245's I have run fine with the old firmware, when updated, nothing works. Eap225's with the latest FW works fine.
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We recommend submitting a support ticket via email for efficient assistance.
Please include the following information in the email:
1. This Forum ID 748432;
2. your community nickname;
3. The type of controller you are using;
4. The config file of the controller.
5. The running log of the controller. (if you didn't use the 5.2.0 firmware for a long time, no need this)
dagoosemusic wrote
@Vincent-TP it's a big mess. A lot of clients lose connection or won't connect at all. 100% sure the firmware. All 3 Eap245's I have run fine with the old firmware, when updated, nothing works. Eap225's with the latest FW works fine.
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Good day Vincent. Here are my answers to your questions;
1. Too often, on the old setups ( 2 x C2600 as AP) and the current (2 x EAP245 running 5.0.6 firmware) it's solid as a rock. Yesterday I connected a spare 245, running the 5.2.0 firmware and already had issues in the evening. It took longer for them to occur, but they are definitely there ! For example, running a Ookla Speedtest using the Android app, it doesn't find a server.
2. SSID does not disappear. The client (smartphone / laptop) simply stays connected, it sends packets but does not receive anyting back.
3. After some time the connection re-establishes. Wifi connection is never lost. The smartphone shows it's sending packets, but not receiving any. I found out when the connection issues were there, a simple ping to both of the access points have a lot of delay every 3 pings. 3 pings go <1 ms, the 4th has 2000ms - 2300ms latency. This would sound like some sort of collision on the network with packets flying around, but this issues resolved when rebooting both of the ap's, never to return again. The connection issues to wireless clients remained though.
4. Not tested. Although both the camera's on the living room AP are unreachable, my smartphone was still having internet. Although problems were occuring on the bedroom AP as well.
5. IP-lease is never lost on the devices I am able to check (I can't check the IP-camera's), so still in the 10.0.0.0/24 range I configured. My AP's are running multiple SSID's over 4 VLAN's. As said, 5.0.6 is working perfectly.
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ReneS89 wrote
Good day Vincent. Here are my answers to your questions;
1. Too often, on the old setups ( 2 x C2600 as AP) and the current (2 x EAP245 running 5.0.6 firmware) it's solid as a rock. Yesterday I connected a spare 245, running the 5.2.0 firmware and already had issues in the evening. It took longer for them to occur, but they are definitely there ! For example, running a Ookla Speedtest using the Android app, it doesn't find a server.
2. SSID does not disappear. The client (smartphone / laptop) simply stays connected, it sends packets but does not receive anyting back.
3. After some time the connection re-establishes. Wifi connection is never lost. The smartphone shows it's sending packets, but not receiving any. I found out when the connection issues were there, a simple ping to both of the access points have a lot of delay every 3 pings. 3 pings go <1 ms, the 4th has 2000ms - 2300ms latency. This would sound like some sort of collision on the network with packets flying around, but this issues resolved when rebooting both of the ap's, never to return again. The connection issues to wireless clients remained though.
4. Not tested. Although both the camera's on the living room AP are unreachable, my smartphone was still having internet. Although problems were occuring on the bedroom AP as well.
5. IP-lease is never lost on the devices I am able to check (I can't check the IP-camera's), so still in the 10.0.0.0/24 range I configured. My AP's are running multiple SSID's over 4 VLAN's. As said, 5.0.6 is working perfectly.
Thank you so much for taking the time to post the issue on the 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 TKID250801344. Please check your email box and ensure the support email is well received. Thanks!
Once the issue is addressed or resolved, please update this topic thread with your solution to help others who may encounter the same problem as you did.
Many thanks for your excellent cooperation and patience!
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How is the performance of the EAP245 and IoT clients these days?
Please mention me if the situation persists.
We hope to have the opportunity to assist you in resolving this issue.
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