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Site to site with real Certificates on CGNAT
USG FLEX 200H V1.35(ABWV.0) So yes any NAT is bad but there is something not right with FLEX H with real Certificates that works fine on old models. Here is what works under IKEv2 VPN300 has link to mobile broadband by FWA510 it is nailed up to going to dnsip.no-ip.org Certificate zyxel-router5.ddns.net on the other end…
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USG FLEX H V1.35 - IPSec connectivity check
According to the release notes, Connectivity Check for IPSec VPN was implemented in this new firmware. How can I configure this? I am not seeing it under the IPSec VPN settings.
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WLAN Settings Access Issue
I’m trying to access WLAN Settings on my USG FLEX 500H device, but I get a blank screen with a loading symbol. How can I access WLAN management?
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Flex500 config to Flex 700H
One of our customers has a Flex500 firewall and we need to replace it with an H series. We have already migrated the configuration from 500 to 500H, my question is, if the customer chooses 700H, is there a way to migrate the 500 configuration?
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Flex H, a rant
Hi, we sell Zyxeldevices for nearly 20 years now and through the announcement of the new "H"-Series (H stands for speed, you know?) i have the pleasure of setting up my first Flex 100H and what a journey it is: First the Box had the IP 192.168.168.1, strange but ok. I tried to register it to the Zyxel Portal but couln't,…
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SSL inspection
We use two USG Flex 200 H and on both devices we have problems with SSL inspection. The problem is that the websites load extremely slowly. Some pages not at all. I don't know whre I can make a mistake because the settings are simple. Is here someone who have the same problems. Is this a bug of the firmware? We use the…
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Nat rule creation issue on our 500H
Hello, Firmware: V1.32(ABZH.0)ITS-0423-250300903 I'm here again... I don't wkonw what excactly is going on our 500H, and sincerly I don't have the time to waste on this....but… This is the third NAT rule I created that freezed the device and I had to reboot it To summarize action made: Create a new NAT rule What happened…
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IPSec VPN Changed Cert Unexpectedly on USG H Series
We were not able do the extensive testing necessary to confirm what was happening. So, we welcome confirmation, insight, or comments. Under conditions unknown to us, toggling the “Enable” switch may cause the IPSec VPN to use a new certificate preventing users from being able to bring up a VPN connection. The work-around…
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WAN Ports have no connection after restart
Hi, i migrated two Flex 100 to Flex 100 H and experience at both the same behaviour. After a restart, the WAN ports have no connection. I have to manually unplug the cables from the port. After that, the port starts getting IP via DHCP, or with static IP traffic start flowing. Does anybody have a solution? Thanks
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flex50h temperature
I think the 50h doesn't have an temperature sensor?
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FLEX 100H v1.32 hard crashing with multiple admins logged in?
Are we the only ones seeing this🤬?? This has happened to roughly 8 different firewalls (at our client's sites, of course….) and results in complete loss of network connectivity, requiring someone to physically power-cycle the device to restore functionality. It is not EVERY time reproduceable, but it has happened enough…
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USG FLEX 200H And 500H Reserved IP
Hello, Here's my problem: when I reserve an IP address, some devices are set to Reserved, while others disappear from the list. Everything works normally, except I can't release the IP address if I need to. How can I regain control? I haven't found anything on this topic. Sincerely, Fred
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WPA3-Enterprise (802.1X/EAP), Certificate for Internal Authentication Server
I’m running a Zyxel USG FLEX 700H with WPA3-Enterprise (802.1X/EAP) for my Wi-Fi network. However, every time a client tries to join, it is prompted to accept an “example server certificate”—which is already expired—rather than a valid, CA-signed certificate or a valide self signed certificate. On my ATP 700 it was…
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Time Zone settings
zyxel flex 100h missing some time zones in system settings?
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FLEX 100H firewall zone bug
We ran into some odd behavior that appears to be a bug on a FLEX 100H running latest 1.32 firmware. We have a firewall rule which blocks NetBIOS packets from ANY-to-WAN, and another rule which allows all packets from LAN-to-IPSec. For some reason, the ANY-to-WAN rule is blocking packets that are supposed to be sent over…
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Replace ATP200 with Flex200H
If I replace my Nebula ATP200 firewall with a Flex 200H, will it copy the settings over, or will I need to start from scratch?
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Email from not accepted
FLEX200H V1.32(ABWV.0)ITS_719_20250606 Email Daily Report then I tried admin@zyxel-router.ddns.net and that worked but then could not change it any more went to Notification and changed Send From to admin@zyxel-router7.ddns.net and it accepted went back to Email Daily Report and it shows this
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IPS iSCSI warnings.
What is this warning telling me? I am familiar with both the source and the destination machines. Is this reporting that the source "192.168.11.13" is doing something to the destination that is harmful or unwanted? I am very familiar with the source, and I would like to assume it is clean an safe. What is IPS detecting…
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SSLVPN Issue HA
Hi all, I am trying to setup a remote SSLVPN access with an OpenVPN client, but I always get a timeout error. My scenario: 2 Flex 500H in HA mode. A simple IPsec IKE2 remote access (with a self-signed certificate) works as well. Now I would setup a SSLVPN access. Related WAN-to-device security policy is correct. USG is…
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Zyxel flex 50 - VPN Mac Sequoia 15.5
Hi all can anyone help me with a guide to configure the VPN part, the clients to connect are Mac. Thanks for your support Regards Faye