XMG1915-10EP -can't connect to switch

MrStranger
MrStranger Posts: 9 image  Freshman Member
First Comment Friend Collector
in Switch

Hi!

I have stranger issue with this switch - previously i use Mikrotik without such problem/

Yesterday i have setup my new XMG1915-10EP switch. It got ip address from DHCP. and then i change it to fixed ip 192.168.1.252.

Also i update switch to the latest firmware and reboot.

After 10-12 hours it stop responding and i have to replace it to old Netgear

Now - i can't get to web interface on any address and it doesn't get any ip address.

I try to download ZON - but it also can't find switch even if laptop directly connect to switch.

I already tried reset it 4-5 sec and factory reset swich, but no success.

With Mikrotik and Netgear i had utility, that can find switch by MAC address and then change IP. Does it possible with Zyxel and what should be my next steps?

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  • Zyxel_Melen
    Zyxel_Melen Posts: 3,916 image  Guru Member
    Zyxel Certified Network Engineer Level 1 - Switch Zyxel Certified Network Administrator - Switch Zyxel Certified Network Administrator - Nebula Zyxel Certified Sales Associate

    Hi @MrStranger

    The ZON utility can select specific Nic to use to scan the Zyxel device. Could you check if you select the correct Nic when finding your XMG1915-10EP? ZON should shows it on the list if you use the correct Nic to scan. In addition, your XMG1915-10EP seems like registered to Nebula. Please note that you need to assign it to a site before configuring it.

    P.S. Factory default needs to press the restore button for more than 6 seconds.

    image.png
    Zyxel Melen


  • MrStranger
    MrStranger Posts: 9 image  Freshman Member
    First Comment Friend Collector

    thank you for comment

    Yes, a press restore button for 10+ second

    Also I check network card when use ZON utility and try to use as laptop and different pc for discover - no success.

    Strangest thing that it was happened after 10+ hours or successful operations after initial setup

    First time I configure xmg as standalone unit, without connection to Nebula cloud.

    Only after i lose connection to web interface, I try to create nebula account with qr code, but switch never connects to cloud.

  • Zyxel_Melen
    Zyxel_Melen Posts: 3,916 image  Guru Member
    Zyxel Certified Network Engineer Level 1 - Switch Zyxel Certified Network Administrator - Switch Zyxel Certified Network Administrator - Nebula Zyxel Certified Sales Associate

    Hi @MrStranger

    What's the system LED(PWR & CLOUD) status of your switch now? Please share this information for us to clarify this issue.

    Zyxel Melen


  • MrStranger
    MrStranger Posts: 9 image  Freshman Member
    First Comment Friend Collector

    Power - green light

    Cloud - blinking green light

    when connect to ports 1-8 and 9-10- corresponding port light is on with colors showing speed (100mbit/1G/2,5G). So externally it looks good, but doesn't show GUI and don't pass anything throu.

  • MrStranger
    MrStranger Posts: 9 image  Freshman Member
    First Comment Friend Collector

    and what should be default ip address? i tried 192.168.1.0/24 subnet - may be after factory reset it use another subnet?

    And ZON utility -is it working on ip address base or on mac base?

  • Xydocq
    Xydocq Posts: 46 image  Freshman Member
    5 Answers First Comment Friend Collector First Anniversary

    hello @MrStranger

    If the switch did connect to Nebula. It might be possible you have been locked out from local access.

    Please check on Nebula under Configure > Site-Settings if Permit access to Nebula devices exclusively from designated IP addresses is disabled.

    image.png

    If this setting is enabled the switch will not respond to local access.

    You should try to reset the switch and test it without connecting the switch to the internet.

  • MrStranger
    MrStranger Posts: 9 image  Freshman Member
    First Comment Friend Collector

    @Xydocq

    Thank you for the answer

    I have it disabled. But i delete switch from Nebula Cloud by removing it in phone app.

    I never connects to cloud - just added by QR code, after it stop working

    Nebula.jpg

    And i try to reset switch (10 second press resume button) - but looks there address non in 192.168.1.0/24 subnet…. Should it get address from dhcp?

    Does it matter which port to use for connect after reset to manage switch?

  • MrStranger
    MrStranger Posts: 9 image  Freshman Member
    First Comment Friend Collector

    and i try to connect to it directly from windows 11 laptop with realtek onboard lan card

  • Xydocq
    Xydocq Posts: 46 image  Freshman Member
    5 Answers First Comment Friend Collector First Anniversary
    edited September 23

    It doesn't matter what port you use.

    After the reset the switch will assign itself the ip address 192.168.1.1

    Don't connect the switch to a network, just connect one computer to it and change the nic-settings on the computer to manual, using ip 192.168.1.3 subnet 255.255.255.0 . Out of habit, I set gateway to the address I want to reach even though it's not needed.

    You should be able to connect to the switch by entering the ip address (192.168.1.1) or http://setup.zyxel

    Username: admin and password: 1234

  • MrStranger
    MrStranger Posts: 9 image  Freshman Member
    First Comment Friend Collector
    edited September 23

    Main main router - mikrotik, so i can see that after reboot Zyxel shows in network with dhcp status testing and address 192.168.1.1 or 192.168.1.173

    ZON can't see it at all

    Mac Scan utility shows sometime zyxel MAC with ip address 192.168.1.1 - but no connection, even if i set manually laptop ip address to 192.168.1.x and default gateway 192.168.1.1

    i saw in some threads that sometime zyxel switch when setting to static ip changes default gateway to 0.0.0.0 and switch become unreachable, but usually factory reset reset this config.

    In my case - switch still unreachable

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