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Import certificate - ERROR: Import custom CA fail
Hi, I just received today an XMG1915. I configured almost everything but can't import custom certificate. We run our own CA and all our services in our lab are using certificates issued by our own CA so they are trusted by our browsers in the company because the CA-Certificate is distributed to all computers. I've…
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Problem with UI with GS1200-5HP v2
User Interface works fine after reset. However, after some usage UI becomes unreliable. I need to refresh the browser several times before I get it to work and then when I submit changes I also need to try several times to make it work. I tried registering it on portal.zyxel.com for warranty and was getting "Cannot find…
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GS1920-24HP Firmware Update
Hi I have a GS1920-24HP which is currently running V4.30(AAOC.0) | 09/16/2015 I know its EOL but I think the last firmware was V4.50 and I can't find the device listed on https://webservice.zyxel.com/end-of-life just GS1900-24HP with firmware 2.70. Can you point me to the correct place?
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Zyxel XGS1935 and routing
Hello team, We have 6 Zyxel GS1915 and GS1920 switches that need to be connected to a new xgs1935-28hp. Since we will probably use static routing and since we use Traffic Inspector as our Default Gateway, do we need a real physical router on our network or xgs1935-28hp would be sufficient? Thank you.
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Zyxel MGS-3712F
Hello there, I was wondering if anyone could send me a Zyxel MGS-3712F firmware? Thank you in advance!
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XMG1915-18EP does not register with nebula
My switch does not seem to register with nebula. The web interface shows Connection Status Internet Internet is ok. Nebula Successfully connected to Nebula. Registration Device is not registered yet, please register it with NCC. I have added the device to NCC, however there it shows up as offline. I have already followed…
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GS1200-8 https for web management
Is the activation of https for the GS1200-8 web interface planned in the future? It looks identical to the XGS1210-12, but https is missing.
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XGS1935-28 loosing parts of settings after a reboot
The Switch is in standalone mode. Boot Version ZyNOS F/W Version V1.00 | 05/30/2024 V4.90(ACJW.0) | 07/02/2024 When I reboot, some Switch settings get lost. All Green Ethernet settings are set to off. Was on while save config Also the CPU Protection settings are disabled. Bug or feature? EDIT_1: I see there is a newer…
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GS1915-8 (V4.70(ACAP.6) | 12/19/2025) - shown as offline in nebula
Hello I have multiple GS1915-8 at a customersite, all switches are working perfectly fine BUT there are 2 specific switches shown offline in nebula, they are not.. Traffic is flowing through them.. I can control them through nebula (i.e send pings (gateway reachable, dns reachable etc..) Can you please advise me on what to…
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VLAN list disappeared in Nebula after weekend, other settings unchanged
Hello, After the weekend (20.10.2025), we noticed unusual behavior across all Zyxel switches connected to Nebula Cloud. Symptoms: The entire VLAN list disappeared - only VLAN 1 remained visible in Nebula and on the devices. However, all other configurations, including port and trunk settings, remained unchanged. The PVID…
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Unable to find IP management - GS1920-24HP
Hello, I have an old GS1920-24HP that works flawlessly, but I want to implement VLANs on my network and I can't find the management IP address of the switch. I've tried Zyxel One Network Utility (ZON), but it doesn't find anything on the network. Could this switch to be older version that is NOT managed? Google (and AI…
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GS1920-8HP V5.00(ABKZ.2) - LACP NOT working
Hello everyone, I installed a GS1920-8HP to communicate with a XGS1930-52HP. On the big one I setup a LACP link on these ports (45-48): While on the small one I setup a LACP link on these ports (1-4): There is no way that I can use these ports (1-4) when I attach a cable from port 45 to port1, neither port2 and so on. As…
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GS1900 - Enable Port PoE not working with v2.9
Hi, I've just upgraded the firmware of my GS1900-8HP switch vom v2.0 to v2.9. After upgrading, the OID “.1.3.6.1.2.1.105.1.1.1.3.1.x” for PoE enabling/disabling does not work anymore. SNMP Clients report that there is no such variable name in the MIB. With v2.0 this worked. Did the OID change? Cheers michiba
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Does the XGS1250-12 have/use active cooling?
About a month ago I purchased a pair of XGS1250-12 Ethernet switches and, while there appears to be a fan port on the backs of the switches, I don't actually hear or feel them running. When I put them into service they operated at uncomfortably warm temperatures. Updating firmware from v1.00 to V2.00(ABWE.0)C0 helped a…
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Brand new XGS1250-12. Seems it may be dropping 10G port randomly
The switch is on a shelf so plenty of circulating air and ambient is ~70 fahrenheit. So far I've had it for about 3 days and had 3 drops. It's connected to my router (running opnsense with a Chelsio T540-BT) which had been working fine by itself as a software switch for months. I see the NIC card that connects from…
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XS 1930-12HP link speed settings in aggregation mode missing (Nebula Cloud Interface)
I want to create an aggregated link between my GS1900-24 and the XS1930-12HP with 2 DAC cables on the SFP ports. If I configure the individual SFP+ ports and set the link speed on the XS1930 to 1G (because GS1900 only supports SFP = 1 G) then the links work fine. When I then aggregate the two ports the link setting is…
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GS1900-24EP get MAC of device connected to switch port
Hello everybody, is there a way to get the MAC-address of the device which is connected to a given port of the GS1900? I tried to filter the MAC-table of the GS1900 but it didn't show all active ports. Thanks for any suggestions Kalli
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Unstable 802.1x/VLAN on GS1900-8
We're experiencing instabilities around clients that authenticate with 802.1x doesn't get redirected to the correct VLAN. A cable disconnect/connect or reboot may help. On a Windows client these commands helped: netsh lan reconnectipconfig /releaseipconfig /renew. Any tips to improve this?
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xgs1910-48 2.0 firmware
I need xgs1910-48 2.0 firmware, thank you!
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Configuring a Voice VLAN on GS1915 8/24 EP Switch
Reading the User Guide (UG) [Version 4.70 Edition 5, 12/2024] and online posts for Voice VLAN is causing some confusion. The configuration of OUI is straight forward but what is required beforehand is not, [at present] I have a Peplink Router with networks 1.1 and 10.1, the GS1915 switch configured for 2 VLANs (1 & 10) all…
