NebulaFlex Switch XS1930 Series - V4.80 Patch 5 Firmware Release

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Zyxel_Melen
Zyxel_Melen Posts: 5,127
Zyxel Certified Network Engineer Level 1 - Switch Zyxel Certified Network Administrator - Switch Zyxel Certified Network Administrator - Nebula Zyxel Certified Sales Associate
image  Zyxel Employee
edited October 6 in Switch New Release

Zyxel Switch XS1930 Series Release Note 

May 2026

ZyNOS Firmware Version on all models

(Click Hyperlink to download the firmware directly)

Zyxel XS1930-10 - V4.80(ABQE.5)C0

Zyxel XS1930-12HP - V4.80(ABQF.5)C0

Zyxel XS1930-12F - V4.80(ABZV.5)C0

New Feature and Enhancements

1. 1.Optimized system stability and synchronization with Nebula to enhance overall device connectivity and management reliability.

Bug Fix

C=Cloud mode, S=Standalone mode

Bug fix C >S
1. [eITS # 250100440] DNS query fail cause cloud disconnect. V -
2. [eITS # 250302409] Fixed an issue that cannot connect to cloud due to uplink device MTU size too small V V
3. [eITS # 241200595] Fixed the issue that old MAC will not be deleted and be static after IP MAC move V V
4. [eITS # 250601371] Fixed an issue where ports Bug fix Nebula Standalone might fail to link up. V V
5. [eITS # 240301652] Fixed an issue where copper ports could become unresponsive after an ESD event. V V
6. [eITS # 251100621] Fixed an incorrect display issue in the IPv6 prefix setup due to an Index ID and interface mismatch. - V
7. [eITS # 251200652] Fixed a failure to configure media type. V -
8. [eITS # 240801706] Fixed an issue where end devices failed to obtain a DHCP IP address when IP Source Guard was enabled with static binding entries that matched the entries of DHCP static table on the DHCP server. V V
9. [eITS# 250200836, 241200613] Resolved an issue where a frozen PoE status triggered false alarm log entries. V V

Please refer to the Download Link for more details.

Zyxel Melen


Comments

  • Makksa42
    Makksa42 Posts: 5
    First Comment Fifth Anniversary
    image  Freshman Member
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    This is the same version as in May!

  • PeterUK
    PeterUK Posts: 4,741
    250 Answers 2500 Comments Friend Collector Ninth Anniversary
    image  Guru Member
    edited September 3
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    maybe a wrong number?

    Screenshot 2026-09-03 155226.png
  • Zyxel_Melen
    Zyxel_Melen Posts: 5,127
    Zyxel Certified Network Engineer Level 1 - Switch Zyxel Certified Network Administrator - Switch Zyxel Certified Network Administrator - Nebula Zyxel Certified Sales Associate
    image  Zyxel Employee
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    Hi @Makksa42 & @PeterUK

    Since there was a bug fix didn't list in the release note, we created a new post to update it and also uploaded the corrected release note on our download library.

    Zyxel Melen


  • Radostin
    Radostin Posts: 4
    First Comment
    image  Freshman Member
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    Hello, Melen, this post is still NOT corrected and XS1930-10's firmware version is the same from May.
    Please, modify this announcement to reflect real changes, because it is misleading.
    Neither attached here XS1930-10 package, nor the one in the "Download library" contain a firmware release from September.
    There is no logic in "September Firmware Release" newsflash to hold the exact same package of May/22.05.2026. Where is the actual September release ?


    Thank you !

  • Radostin
    Radostin Posts: 4
    First Comment
    image  Freshman Member
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    Hello, Melen, this post is still NOT corrected and XS1930-10's firmware version is the same from May.
    Please, modify this announcement to reflect real changes, because it is misleading and there is NO firmware version from September in here.


    Neither attached here XS1930-10 package, nor the one in the "Download library" contain a firmware release from September. There is no point and logic in a "Firmware Release" news flash, when it doesn't hold an actual new release.
    Thank you !

  • Zyxel_Melen
    Zyxel_Melen Posts: 5,127
    Zyxel Certified Network Engineer Level 1 - Switch Zyxel Certified Network Administrator - Switch Zyxel Certified Network Administrator - Nebula Zyxel Certified Sales Associate
    image  Zyxel Employee
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    Hi @Radostin

    Thank you for raising this, and I'm sorry for the confusion.

    The September date refers to the new package we published, not to a new firmware build. The package contains the firmware file together with the release note. The original release note was missing a bug fix, so we re-uploaded the package with a revised release note. The firmware itself was not changed, so the version number remains V4.80 Patch 5, the same as the May release.

    I understand the announcement title and date made it look like a new firmware was released, and I have updated the post to make this clearer. Thanks again for your feedback.

    Zyxel Melen


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