[HOTFIX] Resolve WiFi 7 AP Unexpected Reboot Problem After 7.20p1 Upgrade






We have recently identified an issue affecting certain WiFi 7 AP models. In some cases, specific clients may send unexpected packets during the connection process, which can cause the AP to reboot unexpectedly after upgrading to firmware version 7.20p1. The affected AP models are as follows:
Affected Models:
WBE660S
NWA130BE
WBE530
NWA110BE
NWA210BE
WBE510D
WBE630S
Update [September 1 , 2025]:
We have released the new official firmware 7.20 Patch 2 on September 1, 2025, which resolves the unexpected reboot issue.
Please arrange the upgrade at your earliest convenience through the Nebula Firmware Management page.
Alternatively, you can also download the firmware directly from the Zyxel Download Library.
If you encounter any other unexpected issues, please do not hesitate to contact us.
We sincerely apologize for any inconvenience this may have caused.
Zyxel_HsinBo
Comments
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When is the official firmware updated expected?
D
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I'm seeing issues when using WiFi around the house with 2 x NWA130BE and 1 x NWA90AX, WiFi stays connected but stalls, disconnect and reconnect resolves the issue, happening on multiple devices. Is this related? Still seeing it on the hotfix firmware.
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Hi @Siybeeee
According to your description, your issue is not the same as the issue of this post, AP reboot. Please help to collect the AP's diagnostic, disconnect client/device's MAC address so we can help to check the new issue.
Please send the info to me via private message.
Zyxel Melen0 -
This solution - setting the 2.4 GHz radio to AX mode instead of BE - sounds more like a workaround than a fix. For example, it prevents clients from getting the MLO reliability benefit of being connected to short-range 5 GHz and long-range 2.4 GHz simultaneously. Is there a plan or an expected timeframe for restoring that functionality?
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Hi @BenHead
Not sure if you replied your comment in a wrong post. About the topic that you mentioned, it is not a fix. We just change the default 802.11 mode of 2.4 GHz to AX mode to reduce the issue that old devices can't connect to SSID since the flag from 802.11BE radio. Also, we didn't restrict this setting. You can manually change it to 802.11BE mode.
Zyxel Melen0 -
I see. I saw this in the new p2 hotfix release notes:
8. [RMID: 62239] [Symptom] The access point may reboot unexpectedly when the 2.4GHz radio is configured in BE mode. To prevent this, the 2.4GHz radio mode has been converted to AX mode.
I assumed this was the "fix" for the unexpected reboots, but I now see that this known issue was in the previous release also. Thanks also for clarifying that it can be changed back to BE mode.
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