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What can I do when the warning message "Connect to myZYXEL.com server has failed" pops out?
If you encounter a warning message "Connect to myZYXEL.com server has failed" when clicking on Service License Refresh, it could be a misconfiguration on DNS settings resulting in failure to resolve portal.myzyxel.com which is used for this service. You will see the related logs like below if the device cannot communicate…
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How to set user idle timeout
Object -> User/Group -> Setting -> Miscellaneous Settings Enable user idle detection. Firewall will kick user if there are no traffic from user. The idle detection will monitor Login Users, so it will be affected if user from external AAA server.
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How to download configuration file from Standby partition?
Question: When the device boots up, system will apply the configuration which named "startup-config.conf" on running partition. Each partition has its own configuration files. How to download the configuration from Standby partition? Answer: Go to System > FTP and ensure FTP service is enabled. Access the device by FTP.…
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Why there are many configuration files on the Configuration File Which one is the important?
Background and Scenario: If pasting long time and you will notice that there are many config files exist on the firewall but which one is important? Answer: The device would automatically back up the running-config file whenever firmware updating or if detecting the config be modified to avoid there is any accident…
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How to check the CPU temperature and make sure the device is operating at a proper temperature?
Background and Scenario: To avoid potential overheating issues with your device and prevent unexpected problems such as freezing or sudden reboots, ensure that it is operating at the proper temperature. Answer: If you are using medium or larger models, such as the USG Flex 500, ATP800, or others, you could use the CLI…
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Why am I unable to upgrade firmware by cloud?
Question Why am I unable to upgrade firmware by cloud? Answer If device firmware is weekly firmware or date code firmware, Cloud helper will restrict user download/upgrade FCS firmware from Cloud, because it need user confirm the release note and make sure the issue is fix on FCS, to avoid customer upgrade it, then the…
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Why would firmware update fail in device HA mode?
Question I am doing firmware upgrade on active device. It seems only stand-by device update successfully, but active device stays at the same firmware version. Why would firmware update fail in device HA mode? Answer It could be caused by firmware update check timeout mechanism. By default, the firmware update check…
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How to fix the issue when device Web GUI is unable to access
SCENARIO DESCRIPTION: Somehow, I am unable to access the web GUI of my FLEX/ATP, and the device reboots periodically. Connected serial console to FLEX/ATP, it indicated that httpd is dead, and App watch dog is trying to recover it. What could be the reason that httpd is dead and what should I do for now? Console log…
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How to find the product life
Zyxel have three concepts: End of Development: From the date forward, the model will no longer be developed and no bug fixes or new patches will be released. Maintenance builds will only be available for industry wide critical issues. End of Vulnerability Support: From the date forward, we will no longer provide bug fixes…
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How to get diaginfo by CLI
Perform the following command to collect diaginfo. Router# diaginfo collect ac And you can check the status by command. Router# show diaginfo collect ac status Status: Busy on ZyWALL Once completed, Status will show “standby”. And get the diaginfo through FTP
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How to import address objects in bulk
You may need to add a large number of blacklisted IP addresses. You can accomplish this by using the CLI for bulk importing. Zyxel have three concepts: 1) Editing commands by notepad ++ 2) Enter config mode and paste the commands 3) Add the selects to Group.
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How to perform speedtest on device
Router# debug _speedtest-cli Once you perform the command, device will act as client and do the network speedtest.
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How to speed up the authentication process when using ad as the authentication method?
It takes more than 12 seconds for the client to pass the authentication when using ad as the authentication method. How to speed up the authentication process? Go to CONFIGURATION > System > DNS > Domain Zone Forwarder.Add a DNS domain zone forwarder to speed up the AD authentication.In this example, the domain zone is…
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Is Two-Factor authentication mail able to be sent to the email address from the Active Directory?
Enable Two-Factor Authentication for VPN access and move ad-users to selected User/Group. On Active Directory, configure email address for the ad user “user3”. Make sure the email address is also shown in Attribute Editor > mail. Mail is sent to the AD user “user3”. In MONITOR > Login Users, user3 logged in as SSL VPN (two…
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What does the result of the command "debug system show cpu status" mean?
CPU utilization: 91 % (system: 1 %, user: 2 %, irq: 0 %, softirq 90 %) system: the percentage of the CPU utilization spent on running in kernel space user: the percentage of the CPU utilization spent on running the user space process irq: the percentage of the CPU utilization spent on handling hardware interrupts softirq:…
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How to enter the login page of the legacy device?
Sometimes you might encounter a situation that
using the latest version browser and cannot enter the login page of the legacy device
which is end-of-life (such as ZyWALL USG 100 or other legacy devices). This
article will guide you on how to resolve this situation. The
Chrome browser would return the below error message:…
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How to set up Gmail for gateway mail notification?
Notification emails are used to
notify network administrators about events on the Zyxel device, allowing a
quick response to any issues. This example illustrates how to
configure Gmail for gateway mail notification. Configurations Create an Application Password in Gmail To generate application password in Gmail, we need to…
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How to use iCloud email to send Email Daily Report?
How to use iCloud email
to send Email Daily Report? This example illustrates how to use iCloud email to send Email Daily
Report from Zyxel Firewall. Before Begin Please make sure the firewall works normally and the user has an iCloud
email account. Set up iCloud First, login to Apple iCloud ID manage page and add an…
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Recovery steps if you cannot update the firmware in the running partition
If
you cannot update the firmware in the running partition Here
is a situation, if you notice you cannot update firmware to the newer firmware
such as from V4.65P1 to V4.72. You can follow the below steps to recover your
FW update function: STEP1.
Back up and download the startup-config.conf of the running partition.…
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Failed to upgrade to the new ZLD5.21 patch 1: why and how to resolve it?
Zyxel had just released the new ZLD5.21 patch1, which fixed the parsing error in the Application signature V1.0.0.20220310.0. However, Zyxel support had received support cases, where the firmware upgrade operation failed in certain conditions, in both on-premise mode or Nebula-managed mode. This supplement document is…