[Hotfix] 2.4 GHz Radio not Functioning Issue on NWA50AX, NWA55AXE, NWA90AX

Zyxel_Jami

Hotfix For:
We have recently identified an issue affecting certain AP models, where the 2.4 GHz radio may not function properly after rebooting when running firmware version 7.00 or later. The affected AP models are as follows:

Affected Models:
NWA50AX
NWA90AX
NWA55AXE

To address this issue, we have implemented an urgent fix and made a date code available for download. This update aims to resolve the known issue that affects users with related 2.4 GHz radio, causing them to become unavailable after the AP is restarted.

Upgrade Steps:

Before you start to perform the date firmware upgrade, please go to Nebula web site, navigate to Nebula > Site-wide > Configure > Firmware management as Ignore upgrade firstly to prevent auto upgrade override the provided firmware.

Upgrade via ZON tool:

1. Download and progress the installation of ZON tool.
https://www.zyxel.com/zyxel-file/ZON_Utility.zip

2. Connect your laptop to the same network with your AP, then open ZON.exe.

3. Select the “settings” icon on the right side of the bar. And choose the network interface card which you’re using connect to your network.

4. Click the “Clear and rescan” button. Wait until the scan process is complete, you’ll be able to see your AP is listed in the table.
*Please ensure the laptop running ZON tool is connect to the same network with correct network interface card selected in settings to scan (Step 3.)

5. Select the AP which plan to upgrade the provided firmware, then click the “Firmware Upgrade” icon.

6. Select the “Local upgrade” option and click “Browse…” to upload the provided firmware. (.bin file), and fill in the password, then press “OK” button to proceed the upgrade.

*Note: If your device is being managed on Nebula, please go to Nebula web site, navigate to Nebula > Configure > Site setting > Device configuration to check your password

Additional upgrade method:

FTP upgrade

Local GUI (*Standalone mode only)

Hotfix Solution:

NWA50AX

NWA50AX-700P2DF-2024-08-23.7z

NWA55AXE

NWA55AXE-700P2DF-2024-08-23.7z

NWA90AX

NWA90AX-700P2DF-2024-08-23.7z

If you observed or met any other unexpected issues, please contact us.

We apologize for any inconvenience this has caused.

Mar_Cin

Hey, would firmware for NWA50AX to be applied for NWA50AX PRO?

Zyxel_Jami

Hello @Mar_Cin,

The firmware for the NWA50AX is not compatible with the NWA50AX PRO.
Please note that only the following models are affected:
NWA50AX
NWA90AX
NWA55AXE

These models require their specific firmware. Make sure to use the correct version to avoid any issues with the NWA50AX PRO.

Kekkis

Turned out i was suffering from this. I have 4 nwa50x aps all in firmware 7.0.0 and only one of them was still operating 2.4ghz channels. Will this be fixed in the mainline versions so that we can enable automatic ugprades again?

Zyxel_Jami

Hello @Kekkis,
Thank you for contacting us about this issue. A fix will be included in an upcoming official firmware release in Q1 of 2025. At that time, you can enable auto-upgrade to apply this solution with the next official firmware update.

Cyrill12

Hi

Is it correct that the nwa50ax pro does not habe any issues with the 2,4ghz band? my access point does not look like it is accessible on this band. as soon as I disable 5ghz the access point ist not reachable for any client. firmeware 7.10

Thanks

Cyrill

Zyxel_Judy

Hi @Cyrill12 ,

Please let us know your NWAA50AX PRO management setup: Standalone mode, Nebula cloud, AP Controller?

• If Nebula enable Zyxel support. Additionally, please provide us with the name of your Nebula organization/site here or via the private message by clinking to my account > Message.
• For non-Nebula modes, please provide the configuration file.

This information will help us investigate your issue.

Zyxel_Judy

Hi @Cyrill12 ,

After reviewing, we found that the 2.4GHz signal is being broadcast from your NWAA50AX PRO. This means your reported issue is not related to the original post, which concerns a case where there is no 2.4GHz broadcast.

We can help investigate why your wireless clients cannot connect to the 2.4GHz SSID. However, the diagnostic file that you provided appears to have been collected after the AP reboot, which is why we cannot find any logs related to 2.4GHz wireless client connections.

Could you please help us:

• Connecting wireless clients to the 2.4GHz SSID
• Waiting until the wireless clients show connection failure messages
• Collecting a new diagnostic file at that point