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💡Duo Security Authentication Integration Guide
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💬 Your Firewall Story Could Earn You $35 Across Two Platforms!
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Secure Start with Zyxel x Tailscale 🎁 Get 6 Months of Tailscale VPN Free, Before Oct.!
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[Trade-Up Program] 🔄 Time to Trade Up: Say Goodbye to Legacy USG, Hello to Next-Level Securi…
Time to Trade Up: Upgrade Your Legacy USG and Unlock a Powerful New Experience.
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Tailscale Site to Site VPN Subnet ranges
Can Zyxel confirm that each end of the VPN needs to be a completely different block of subnet or can it be different subnets within the same block. So, can the subnet at one end be 192.168.0.xxx and the other end be 192.168.1.xxx? Or do they need to be 192.168.xxx.xxx at one end and 172.16.xxx.xxx at the other? thanks….…
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Firewall Configuration Converter fails with ZyWALL 110 (V4.73(AAAA.2))
Hi Tested with two or three 110s and with all of them the converters refuses to Load the source conf. My plan is first convert to VPN100 and then from VPN100 to USG Flex 200H. This tool: Firewall Configuration Converter | Zyxel Networks The error message: "The file is mismatched with tool, please upload a ZyWALL110 (4.32…
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PX3321-T1 firmware and WPS
I have two questions about my PX3321-T1. I'd like to know where I can download its firmware, if there's a new version, and why I can't disable WPS, even when I click on the disable button, it's still enabled and grayed. Firmware version: V5.44(ACHK.0)b4_G1_20230719
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[USG FLEX H Series] - NTP Server
Hello everyone, Is it possible to use the USG Flex H as an NTP server? This way, I wouldn't need to expose my devices to the internet to synchronize their clocks, but the current time/timezone information would come directly from the firewall, as the only true time source. Thank you,
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USG Flex 200 V5.42 Update
After the update:The problem with one Zywall USG FLEX 200 is that some of the addresses behind the device are not resolved via DNS. The second Zywall USG FLEX 200 is periodically rebooted.
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Firmware for ZyWALL 2 Plus
Hello, I'm new here, new job, new legacy hardware to manage... so here is this old ZyWALL 2 Plus and I'd like to update its firmware. However this model is not listed into MyZyxel portal. Where can I find the firmware for it?
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Firmware Update
Hello, I am currently running v5.39(ABAR0). Will I be able to directly update to the current v5.42ABAR1C0? Thanks.
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ATP200: no connection to gateway after automatic Firmware update (V5.41 to V5.42)
ATP200 Automatic Update from V5.41(ABFW.0) to V5.42(ABFW.0). Status OK. But no connection to gateway is possible (fixed addresses ipv4 and ipv6). After reboot with V5.41 the connection runs correctly.
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How to implement IPSec Client VPN with Windows Native Client and MFA?
Hi I would like to implement MFA on an already working IPSec client VPN access on USG FLEX 200. Configuration of MFA is well documented. As I understand the workflow is that in the first step the VPN connection is established using username/password. In the second step the MFA code must be entered via the web based…
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ipsec vpn
i have 2 usg flex I configured a VPN with Wizard and I get the error: Command failed: establishing CHILD_SA 'xxxx_sp1' failedThe routers are open with a static IP.
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ATP800 and 2fa for vpn users.
I have an ATP800 deployed with several remote users connecting with secure_extender v4.0.5.0. I have attempted setup of the 2fa with google authenticator. I have made the user and vpn configuration changes and the police changes for port 8008. I can connect to the vpn but the browser does not pop for the 2fa. if i manually…
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E-mail alert format
Hi, The alert emails from the firewall (USG500 Flex) are unreadable (see below). How can I format the message? I want this vertical format (or any readable solution): No: 1 Date/Time: 2025-02-12 13:43:47 Category: secure-policy Priority: alert Source: 1.xx.xx.xx:27181 Destination: 212.xx.xx.xx:7523 Note: ACCESS BLOCK…
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V5.42 DNS is broken with FQDN objects
FLEX200 V5.42 If you have no FQDN objects you may likely not see a problem but if you do big problem as some DNS lookups will fail completely to pass through the USG no matter how many times you try. Here it my bind and then DNS by 8.8.8.8 and this is a Wireshark view WAN side
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Please can you document the IP addresses we should whitelist for this feature
Specifically the authentication proxy port. SSLVPN authentication with Microsoft Entra ID — Zyxel Community Thank you
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ZyWALL USG20W-VPN - Firmware V5.41(ABAR.0)
Hello, After upgrading to firmware V5.41(ABAR.0), VLAN-connected devices gradually lost connectivity. The main LAN remained functional. Restoring a backup configuration made before the firmware upgrade immediately restored all VLAN and DHCP functions. Firmware V5.41(ABAR.0) appears to break DHCP/VLAN bindings or…
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ATP800, kernel panic fqdnObject_syncQ_chrdev_sync()
I try to forget all my expirience with ZW last 3 years, but ZW developers don't want leave me alone. 3 days ago ATP800 (5.38) start randomly reboot. After 2 reboot i update to last FW (5.42). It was strange, because it was published in day, that all starts. And now on 5.42 we have unexpected reboot every 3-6 hours 😍. Debug…
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USG LITE 60AX SIP ALG settings
Hi all, We recently installed a USG Lite 60AX on a clients premises. Im not entirely sure the 60ax is the problem but they have started experiencing unusual VOIP issues. Just wondering if ther is SIP ALG (or something along those lines) on these devices and if so how do I turn it off please. Kind regards, Luke Archbold.
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AES_GCM on ATP-Series
Dear Zyxel-Team, in the near Future a Phone-Provider we have an VPN Connection to, tolds me in December, that we urgently should update our Connection from AES_CBC to AES_GCM. We use a ATP700 with the latest Update installed (5.41). Is there a Chance, that Zyxel provides GCM in an further Update ? Thx Gordon
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ATP100 – critical regression after upgrade to firmware 5.42(ABPS.0), reboots caused by kern
Dear Zyxel Support Team, I would like to report a critical stability issue affecting a Zyxel ATP100, which started immediately after upgrading to the newly released firmware version 5.42(ABPS.0). Device: Zyxel ATP100 Firmware: 5.42(ABPS.0) (officially released on 2026-02-04) Status before upgrade: stable operation on…
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Why TF does every firmware update screw up?!
Seriously, defaulted another device!? Pull you heads out. These devices arent next door, arent "default" installs. Yet every other firmware update defaults or locks a device!
