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What should I do if the device failed to be upgraded to the latest firmware?
Please follow the procedure to upgrade the firmware Step 1. Make sure you have on-site local support that able to reach the device Step 2. Unplug all WAN connections. Step 3. Access the device via LAN IP. Step 4. Copy startup-config.conf to recover.conf. Download "recover.conf" to your PC. Step 5. Switch to standby…
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How do I update the firmware via FTP on the USG Flex H model?
Scenario : Users typically use the Web-GUI to update the firewall firmware, but it's also possible to use FTP for firmware updates. This FAQ will guide you on how to execute this. Answer : Please prepare a PC to connect to the firewall's LAN port and obtain a DHCP IP (for example, the assigned DHCP IP is 192.168.168.33…
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How do I disable abnormal_tcp_flag_detect using the CLI?
Question: The user may encounter a Monitor log message stating, 'abnormal TCP flag attack detected, DROP' However, this does not impact any services on the user's network. The user can ignore this log message or deactivate this function using the CLI. This article will guide the user on how to deactivate the function via…
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How do I configure Zyxel firewall to send logs to a Syslog server?
Question : How do I configure my Zyxel AP to send logs to a Syslog server? Answer : Please navigate to the GUI path Log & Report > Log Settings > Remote Server 1, activate the Syslog feature, set the Syslog server address, and select the Log Categories you want to enable. Test result: For instance, we used Visual Syslog…
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How to encrypt your configuration File
Question: How to encrypt your configuration File Answer: We recommend encrypting your configuration file to protect the privacy
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How to perform the speed test on the Web-GUI of the USG Flex/ATP model?
Question : How to perform the speed test on the Web-GUI of the USG Flex/ATP model? Answer : The USG Flex/ATP model has a built-in speed test tool. To perform the speed test, follow these steps: Navigate to Maintenance > Diagnostics > Network Tool > Select Speed Test > Choose the WAN interface that you want to test. Select…
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[ATP/FLEX] How to collect diagnostic file on Firewall Local WEB GUI?
At times, you may be asked to provide the diagnostic file for further troubleshooting. This article will guide you through the process: Access the local Web GUI. Navigate to Maintenance > Diagnostics Info Click Collect Now button 4. After the collection is finished, click Download button to download the diagnostic file to…
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[ATP/FLEX] How to download configuration file on Firewall Local WEB GUI?
At times, you may be asked to provide the configuration file for further troubleshooting. This article will guide you through the process: Access the local Web GUI. Navigate to Maintenance > File Manager > Configuration File. Click on startup-config.conf and then click the Download button. For more details on the different…
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How do I switch the boot partition number on the ATP/USG Flex models via CLI?
Question : How do I switch the boot partition number on the ATP/USG Flex models? Answer : For instance, the user can use the CLI command below to set the boot partition number to 2. Once set, the firewall will reboot immediately. Router# configure terminal Router(config)# set firmware boot number 2 Welcome to ATP100…
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How to find the running-config in the collected diag-info file for USG Flex/ATP models?
Question : How to find the running-config in the collected diag-info file for USG Flex/ATP models? Answer : When the user collects the diag-info log from the USG Flex/ATP firewall for troubleshooting purposes, they can find the running-config in the diag_zysh_common.dbg file. If you navigate to 'show running-config,' you…
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How to collect ZyWALL diagnostic files via the local GUI?
Background Collecting diagnostic files from your ZyWALL device is crucial for troubleshooting and resolving technical issues. These files provide detailed information about the system's performance, configuration, and events, allowing support teams to identify and address potential problems efficiently. For users who need…
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Why Did Device HA Sync Fail?
Question: Why did my ATP500 devices fail to sync when setting up Device HA? Answer: The sync failure likely occurred due to overlapping IP subnets between the heartbeat port and the VTI interface. This issue can prevent proper synchronization and even cause problems accessing the Device HA page. Solution: * First, make…
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How to resolve RDP session disconnections on FLEX/ATP?
How can I resolve constant RDP session disconnections on Zyxel USG Flex 100? If your RDP sessions are constantly disconnecting when using a Zyxel USG Flex 100 firewall but work fine when connected directly to a modem or a wireless hotspot, the issue could be related to the ICSA protection mechanism on the firewall. To…
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[ATP/FLEX]Why Can't I Delete a User on Nebula?
Why Can't I Delete a User on Nebula? If you are unable to delete a user in your Nebula organization, it may be due to the user being created at the Organization (Org) level. To delete users created at the Org level, follow these steps: * Login to the Nebula Control Center. * Navigate to your "organization-wide >…
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Why my computer is affected virus even though I have enabled Anti-malware in my gateway?
The gateway-level malware protection is not exactly the same as end-point based USG Anti-Malware function is a gateway-level stream-based technology that provides a way to detect the most dangerous and prevalent threats (“in-the-wild”) at wire speed. This solution represents a balanced trade-off between in depth security…
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How to update Geo IP database?
Question: How can I update Geo IP database via CLI? Answer: To update the country-to-IP-address database for all countries. geo-ip database update country To set up weekly update for geo-ip database geo-ip database update weekly {fri | mon | sat | sun | thu | tue | wed} <0..23>
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How can I test user accounts on authentication server via CLI?
Question: How can I test user accounts on authentication server via CLI? Answer: The following example of AD server configuration: • IP address: 172.16.50.1 • Port: 389 • Base-dn: DC=Zyxel,DC=com • Bind-dn: zyxel\engineerABC • Password: abcdefg • Login-name-attribute: sAMAccountName Then you can use this command to test if…
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What USB FAT32 partition type are not supported for USGFLEX?
Scenario: I plugged a USB stick to my USGFLEX 100, the file system is FAT32 which should be supported, why it shows unknown for file system? Answer: Please check the partition type of your USB storage. We support partition type of FAT32 is “0x0B” or “0x0C” only. The following partition types are not supported by USG. 0xEE:…
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How to clean up flash usage?
Scenario: I noticed the flash usage reaches most 100%, how to fix it? Answer: You can use the command to delete unnecessary files when flash usage is full. debug system _disk-cleanup
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Which SSH version does ZLD firewall support?
Question: Which SSH version does ZLD firewall support? Answer: ZLD firewall such as ATP series and USGFLEX series, support SSH version 2.
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Can I input space character to the password for AD server?
Question: Can I input space character to the password for AD server? Answer: No, it's not support on device system, so user password does not support space character too.