This article provides a weekly overview of the latest Zyxel firmware releases for firewalls, switches, access points, LTE/5G devices, and other supported products.
Here you can quickly check whether a newer firmware version is available for your device, review newly released Support and Lab firmware, and access the corresponding release notes to learn about bug fixes, security improvements, new features, and known issues.
If you are troubleshooting a problem, we recommend checking this page first to verify whether a newer firmware version is available, as many issues are resolved through regular firmware updates.
This page is updated every week to provide the latest firmware information for Zyxel products.
Release Notes (Login Required)
If you find a non-working link, please feel free to comment under this article, and we will fix it.
*[4.73 devices are EOL - we support them with Weekly until December 2023]
| Device | Code | Version |
Version |
Version 1.39 26WK34 |
| USG Flex H Series 1.39 26WK32 | ||||
| USG FLEX 50H | ACLO | Contact us for the latest up-to-date version | ||
| USG FLEX 50HP | ACLP | Contact us for the latest up-to-date version | ||
| USG FLEX 100H | ABXF | Contact us for the latest up-to-date version | ||
| USG FLEX 100HP | ACII | Contact us for the latest up-to-date version | ||
| USG FLEX 200H | ABWV | Contact us for the latest up-to-date version | ||
| USG FLEX 200HP | ABXE | Contact us for the latest up-to-date version | ||
| USG FLEX 500H | ABZH | Contact us for the latest up-to-date version | ||
| USG FLEX 700H | ABZI | Contact us for the latest up-to-date version | ||
| USG Flex Series 5.42WK06 | ||||
| USG FLEX 50 | ABAQ | Download | ||
| USG FLEX 50W | ABAR | Download | ||
| USG FLEX 50AX | ACGB | Download | ||
| USG FLEX 100 | ABUH | Download | ||
| USG FLEX 100W | ABWC | Download | ||
| USG FLEX 100AX | ACFN | Download | ||
| USG FLEX 200 | ABUI | Download | ||
| USG FLEX 500 | ABUJ | Download | ||
| USG FLEX 700 | ABWD | Download | ||
| ATP Series 5.42 WK06 | ||||
| ATP100 | ABPS | Download | ||
| ATP100W | ABRW | Download | ||
| ATP200 | ABFW | Download | ||
| ATP500 | ABFU | Download | ||
| ATP700 | ABTJ | Download | ||
| ATP800 | ABIQ | Download | ||
| USG Series 5.42 WK06 |
USG Series 4.73 WK36 |
|||
| USG20-VPN | ABAQ | Download | ||
| USG20W-VPN | ABAR | Download | ||
| USG40 | AALA | Download | ||
| USG40W | AALB | Download | ||
| USG60 | AAKY | Download | ||
| USG60W | AAKZ | Download | ||
| USG110 | AAPH | Download | ||
| USG210 | AAPI | Download | ||
| USG310 | AAPJ | Download | ||
| USG1100 | AAPK | Download | ||
| USG1900 | AAPL | Download | ||
| USG2200 | ABAE | Download | ||
| ZyWALL Series 4.73 23WK36 | ||||
| ZyWALL110 | AAAA | Download | ||
| ZyWALL310 | AAAB | Download | ||
| ZyWALL1100 | AAAC | Download | ||
| VPN Series 5.37 WK31 | ||||
| VPN50 | ABHL | Download | ||
| VPN100 | ABFV | Download | ||
| VPN300 | ABFC | Download | ||
| VPN1000 | ABIP | Download | ||
For all other products, User Guides, or Datasheets, you can find them in our Download Library.
Comments
12 commentsPlease sign in to leave a comment.
Any plans to add the WAC6552-DS so it is supported on the newer ZyXEL routers? I have a VPN100 and a WAC6552Ds and I cannot put the WAC6552ds into management mode. It does not get picked up at all by the VPN100.
I remember seeing a forum post on here stating that this is a known issue and it was being worked on. Right now I have to put my outdoor AP (WAC6552DS) into standalone mode and the indoor units (WAC6503) are in managed mode. This basically breaks 802.11r roaming and I have to constantly disconnect and reconnect my devices when I go outside.
Please advise.
Dear Mr Yockey,
thank you for reaching out to us. After some internal research, we have received this reply from the Market Development Manager for Security products: "The WAC6552D-S will be supported in VPN 100 with firmware ZLD v4.35, the release date is set to Jan 20, 2020."
So hopefully, this will resolve your inquiry. If not, please feel free to create a support case via our support portal.
Best Regards
Phillipe Piris
Technical Support Engineer
Have you changed your support policy? No support for Weekly Firmware anymore?
Hi Line2,
we prefer to contact us before on official release firmware version and just upgrade the weekly firmware "in case".
Weekly versions should not be installed by default on all of your devices, without approve or at your own risk.
We still give support, but we can´t guarantee, that you may need to re-do configuration or need to drive On-Site to recover based on Weekly quality due to it´s not a official long-time tested firmware.
Thanks.
Hello Mr. Bohnen
can you tell me the password for the weekly Firmware, need the zywall110.
Hello Mr. Dettling,
There is no password for the weekly firmware.
You download the zip, extract it and apply the .bin (firmware) to your device.
Will ZLD 5.xx also be available for the USG 110?
Hi @...,
no the 5.X Trunk is only for the above mention devices.
USG110 will keep 4.X Trunk and not get bigger new features in future (Bugfix Status).
Thanks.
Tobias
Hi Tobias,
where can I report bugs in the weekly firmware?
Thanks.
Hi Jan,
you can just open a normal support case and we will investigate.
https://support.zyxel.eu/hc/en-us/articles/360014020440-How-to-contact-Support-Team-
Thanks.
Tobias
Tobias Hermanns - System Engineer
Hi Tobias, will there be a weekly firmware version 5.36 for the VPN series?
Евгений, здравствуйте. Откройте заявку, я вам вышлю актуальную версию недельного обновления для вашего VPN шлюза на базе 5.36. Статью обновим немного позже.