ATP 500 and Web Gui unusable

Ceccus

I have an ATP 500 that is not directly exposed on the Internet.
Since this morning I can no longer reach the configuration web interface. It remains loading with Firmware 5.39 ABFU 1. And even some sites no longer load correctly.
Restoring the previous firmware version (5.39 ABFU 0) everything is OK.
To restore I used ‘debug mode’ by running the commands :

atcd 1
atgo

Probably an ATP200 alreo also has the same problem (but I will check this tonight)
Has anyone had the same problem?

Thank you and best regards

David

ESupport

Hi,

we had the same issue. Only now there is this post https://support.zyxel.eu/hc/en-us/articles/24159250192658-Firewall-Not-reachable-or-unresponsible-or-unable-to-boot-up .

We upgrade only one partition in case the new version has any problems. How do i know which is the backuppartition? Trial and error is the answer. Had a Flex and 2 ATPs for now.

Will there be an Signatureupdate that fixes this error or have i to recover any Box thats not reachable anymore?

BCC

I would recommend to temporarily disable App Patrol scheduled definition download until we know Zyxel removed bad definition. Your fixed devices will pull it again and go into the same unresponsive/rebooting loop.

Ceccus

Hi,

Thank you for your answers.
I'll check the signature updates ... thanks
With the newer Firmware it worked until last night.

David

Ceccus

Hi,

Thank you for your answers.
Updating all signatures (including APP Patrol) with the old Firmware (5.39 ABFU 0) continues to work.

Regards

David

Ceccus

Hi,
this is one of the errors (Zyxel ATP 200) Firmware 5.39 ABFU 1)

David

Ceccus

Hi,

Is this the ultimate solution?

https://support.zyxel.eu/hc/en-us/articles/24159250192658-USG-FLEX-ATP-Series-Recovery-Steps-for-Application-Signature-Issue-on-January-24th

David

Zyxel_Judy

Hi users,

You can find the step-by-step guide at the following link:

Recovery Steps for USG FLEX/ATP Series Application Patrol Signature Issue (Jan. 2025) — Zyxel Community

We hope this guide will help you resolve the issue quickly and minimize any further disruptions. If you continue to encounter difficulties or need additional support, please do not hesitate to reach out to our support team at cso_security@zyxel.com.tw or leave the detail comment here with your region(country), model information (S/N) and contact info. We'd like to have contact with you to assist and resolve the issue caused by the signature incident.

Thank you for your understanding and continued support.

Ceccus

Hi,

Still the same problem?
I have restored to the old firmware version and everything works again.
But what's going on?

D.