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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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my USG Flex 50 ist limited to 64 entries of static DHCP entries
ist looks like that my USG Flex is limited to only 64 entries of static DHCP entries CLI Number: 4 Error Number: -4008 Error Message: 'Static host have reached the maximum number. where the problem? is there a switch to get more entries?
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When will the USG lite 60AX
get a new firmware?
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FLEX500: Application Patrol: HideMyAss, x-vpn and Psiphon false positives?
Hello, I'm experiencing a strange issue for the last 3-4 weeks as my FLEX500 is logging HideMyAss, x-vpn and Psiphon outgoing connections from many windows 10 and windows 11 lan computers. These connections are vs specific public ips, ports 80 and 443, i.e. : HideMyAss 52.21.115.110 34.111.175.102 34.160.176.28…
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SCR 50AXE NAT rule IP addresses
Hi, I have read numerous articles about this, but don't seem to be able to get a definitive answer. I need to have multiple IP addresses in the 'Allow remote IP' but can't as it supports a single address. So the solution for that is to add multiple rules, but when I try that it says that the port is already used. So is it…
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Where do I report false positive for Reputation Filter
A local restaurant made its' way on the false positive list. The IP of the restaurant is: 198.71.232.3 https://hamachichicago.com/ I have manually allowed it for my site but for some reason their web site is coming up as a botnet under IP reputation however URL list is categorizing it correct as restaurant. Thank you,
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Full Cone NAT via FLEX H
Hi, I replaced an ATP200 with a USG FLEX 100 H on a network with a public IP address and a PBX in LAN. Some public ports were mapped via NAT to the internal PBX. With ATP200 was all ok, with FLEX H clients can start VoIP calls, but the voice didn't pass via NAT. PBX Technincian spoke about Full Cone NAT, Restricted Cone…
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Radius server on ZyXEL FLEX H with SSL VPN
Recently upgraded to FLEX H series and in same time to WIndows Server 2025. We used to have AD Integration for VPN, so that users could be defined on AD. Classic implementation (TCP389) still works with new FLEX H series combined with SSL and OpenVPN Client. But as we have to move on to Windows Server 2025, classic LDAP on…
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Bug Report / Feature Request — USG FLEX Web UI: 2FA verification field does not accept ENTER key
Summary Inconsistent keyboard behaviour between the login stage and the 2FA verification stage creates a daily usability and security friction point for administrators using standalone mode with 2FA enabled. Current behaviour Step 1 — Username/password screen: ENTER key submits the form correctly. Step 2 — 2FA verification…
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USG flex 200H
Guten Tag Zusammen, Auf der Kunden Firewall wird im VPN Status bei einer Verbindung immer zwei "Tunnels" angezeigt. Auf der Gegenseite ist eine Azure Firewall von Microsoft. Was könnte der Grund sein das auf der USG flex 200H zwei Tunnels angezeigt werden? Danke für Eure Antwort. Hello everyone, On the customer's firewall,…
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problema failover
Buongiorno, ho un USG flex 200 con firmware V5.39(ABUI.1), sono configurate 2 wan: 1 IP statico con un router 5G di backup 2 PPPoE che dovrebbe essere la principale ho seguito questa guida per configurare il failover: https://support.zyxel.eu/hc/it/articles/360005480394-Failover-WAN-tramite-trunk-di-un-USG posto gli…
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No country ID for this IP
Hi, just noticed this IP which has no country identification to it in SecuReporter, please fix everywhere where needed: Question for my understanding: does SecuReporter use same GeoIP sources as the firewalls themselves? I assume you ask the GeoIP owners for fixes, as many devices update automatically from the same online…
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Captive Portal with USG Flex 100
Dear Zyxel Community Support Team, I am currently configuring a USG FLEX 100 (AP is NWA5123-AC) with a Captive Portal for our guest network (VLAN 10, subnet 10.0.10.0/24). While the portal itself works perfectly when accessed directly via http://10.0.10.1 , automatic redirection for unauthenticated users does not function…
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USG Flex 100, changes in security profiles not saved
Hello, I don't know since when, but my Zyxel USG Flex 100 is not saving any changes to existing security profiles, not at config details and also not of at least the names. Reboot of USG did not help, issue still exists. Current Version: V5.42(ABUH.1) Released Date: 2026-02-08 02:18:35 What is also strange: If I go to…
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Dirty Frag kernel CVEs (CVE-2026-43284 / CVE-2026-43500) - ESP/IPsec path - follow-up to the Copy Fa
Dear Zyxel team There is already a helpful thread on the related Copy Fail vulnerability where a Zyxel employee confirmed the appliance is not practically exposed, since exploitation needs a local unprivileged user to run code and the firewall/AP do not offer that attack surface:…
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تغيير باسورد الشبكه
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native Windows VPN connection KO in the last few days (IPSec IKEv2)
Hello folks! I'm experiencing a total stop of the VPN connection on some Windows 11 clients. It started no more than 2 weeks ago. PROBLEM DESCRIPTION: - when i launch the connection it hangs on "connection in progress" and never connects, nor gives error message - no logs on the firewall - RASMAN service is stopped and i…
