WBE660s fail to update the firmware 7.10 to 7.20

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DGOM
DGOM Posts: 4
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Happy owner of a WBE600s AP, it is impossible to update the firmware to its latest version!
In add, I noticed on the forum that some users were having difficulties with version 7.20.When is it? Should I wait for a new patch?Why can't I install 7.20?

Thanks in advance for your answers.

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  • saltet
    saltet Posts: 78
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    edited August 2025 Answer ✓
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    I have ignored the update as I have to many old devices which not have WPA 3 - so far have no problem with continuing using firmware 7.2.
    I have one WBE 660 and 6 NWA 130 in my network.
    For example some older iPad Pro do not have WPA 3 and as well temperature measuring devices.

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  • saltet
    saltet Posts: 78
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    edited August 2025 Answer ✓
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    I have ignored the update as I have to many old devices which not have WPA 3 - so far have no problem with continuing using firmware 7.2.
    I have one WBE 660 and 6 NWA 130 in my network.
    For example some older iPad Pro do not have WPA 3 and as well temperature measuring devices.

  • Zyxel_Tina
    Zyxel_Tina Posts: 1,010
    Zyxel Certified Network Administrator - Security Zyxel Certified Network Administrator - Switch 250 Answers 500 Comments
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    Hi @DGOM,

    Regarding the firmware upgrade, you can try the following official methods:

    If the issue still occurs after trying these methods, we’ll need a bit more detail to understand what’s happening on your side. Please send us the following via private message so we can investigate further:

    • Your network topology when doing firmware upgrade.
    • Any error messages you encountered during the failed update (screenshots are welcome).
    • A full video recording of the entire firmware upgrade process, so we can clearly see what happens.
    • Diagnostic information exported from the local GUI. Please refer to this FAQ.

    With this information, we’ll be able to assist you more effectively.

    Zyxel Tina

  • DGOM
    DGOM Posts: 4
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    Hi,

    I have some old devices, so should I keep the current version? It's strange not to ensure backward compatibility for the protocols in the new version of the firmware, right?

    To update this Wi-Fi access point over the web, do I need to open a specific port on the router? I don't see any details about this in the tutorials that were sent.

    Thanks in advance for your answers.

  • Zyxel_Tina
    Zyxel_Tina Posts: 1,010
    Zyxel Certified Network Administrator - Security Zyxel Certified Network Administrator - Switch 250 Answers 500 Comments
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    Hi @DGOM,

    Generally, we recommend users keeping their devices updated with the latest firmware version to benefit from improved features and security.

    When upgrading the firmware via GUI, if your computer is directly connected to the device, there is no need to rely on special protocols or open any specific ports. Manually upload the firmware file following the standard upgrade steps, which typically works smoothly.

    However, if you encounter any issues during the update process or other related problems, please feel free to let us know. We are happy to assist further.

    Zyxel Tina

  • DGOM
    DGOM Posts: 4
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    Hi @Zyxel_Tina ,

    I tried the 3 methods and none of them worked. The wbe660S launches the update process, reboots, but the firmware remains at version 7.10!

    I am desperate 😢

  • Zyxel_Tina
    Zyxel_Tina Posts: 1,010
    Zyxel Certified Network Administrator - Security Zyxel Certified Network Administrator - Switch 250 Answers 500 Comments
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    Hi @DGOM,

    Regarding the firmware upgrade failure, could you please first ensure that the PC and AP are on the same subnet and send us the diagnostic info file (after the upgrade failure) from the local GUI via private message so we can investigate further. For collecting instructions, kindly refer to this FAQ.

    Zyxel Tina

  • DGOM
    DGOM Posts: 4
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    edited September 13
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    Hi Tina, and everyone following this thread,

    Sorry for the long silence — I moved house and had to pause this. The problem is still the same: the WBE660S starts the update, reboots, but stays on V7.10(ACGG.1).

    To answer your question: yes, my PC is on the same subnet as the AP.

    Since my last message I checked a few more things:

    • Network: I tested with traceroute to firmware.nebula.zyxel.com from a PC on the same network. It reaches the destination fine, no blocking.
    • NTP: working correctly — I can see "NTP server time.google.com update has succeeded" in the AP's event log, right before the update attempt.
    • Power: I had "Force override power mode to full power" enabled in Nebula. I turned it off and tried again — same problem, no change.

    Here is what the Nebula event log shows for the last attempt (I cannot export the full log, it seems to need an active Pro Pack license — I only have screenshots, I can attach them if needed):

    12:45:36 — Receive firmware upgrade RPC
    12:45:36 — Downloading the firmware now
    12:45:37 — Updating the firmware now
    [nothing logged for about 3.5 minutes]
    12:49:08 — Radio1 DCS starts channel selection (this normally happens after a reboot)

    …

    There is no error message at all — no checksum error, no "upgrade failed". The AP just goes quiet in the middle of the update and comes back on the old version.

    I already tried the three methods you suggested (web GUI, FTP, ZON) and none worked. I also ruled out network, NTP and power. At this point I'm wondering if this could be a hardware problem (flash memory failing during the write). Do you think this should go to an RMA check?

    Thanks in advance for your help,
    DGOM

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