Nebula 20.00 - WAN is declared "Up" but it is down

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GiuseppeR
GiuseppeR Posts: 756 image  Guru Member
Zyxel Certified Network Engineer Level 1 - Switch Zyxel Certified Network Engineer Level 1 - Nebula 5 Answers First Comment
edited June 3 in Nebula

Hello everyone,

as you can see I have a firewall with 2x WANs:

immagine.png

WAN2 is my backup on that site.

WAN1 is down:

immagine.png

Anyway I see that it is declared as "Up":

immagine.png

I think it is a little bit confusing info, as you can see there is zero WAN1 traffic:

immagine.png

How can I solve that?

Thanks in advance.

All Replies

  • Zyxel_Judy
    Zyxel_Judy Posts: 2,569 image  Zyxel Employee
    Zyxel Certified Network Engineer Level 2 - Nebula Zyxel Certified Network Engineer Level 2 - Switch Zyxel Certified Network Engineer Level 2 - Security Zyxel Certified Network Engineer Level 1 - Nebula
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    Hi @GiuseppeR ,

    Based on the screenshot provided, we are unable to confirm that WAN1 is actually down.

    The behavior could be caused by the device not allowing ping and related to a traffic statistics display issue. How about the traffic in real?

    Could you please provide your Nebula organization and site name and enable Zyxel Support access so we can investigate further?

    Zyxel_Judy

  • GiuseppeR
    GiuseppeR Posts: 756 image  Guru Member
    Zyxel Certified Network Engineer Level 1 - Switch Zyxel Certified Network Engineer Level 1 - Nebula 5 Answers First Comment
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    Hi @Zyxel_Judy

    sent a PM with infos and detailed screenshots

  • Zyxel_Judy
    Zyxel_Judy Posts: 2,569 image  Zyxel Employee
    Zyxel Certified Network Engineer Level 2 - Nebula Zyxel Certified Network Engineer Level 2 - Switch Zyxel Certified Network Engineer Level 2 - Security Zyxel Certified Network Engineer Level 1 - Nebula
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    Hi @GiuseppeR ,

    The "Port Status" shown in Nebula reflects the physical link status of the port — it indicates whether a cable is physically connected, regardless of whether that connection actually has internet access.

    In your case, we believe the USG FLEX 200 is online on Nebula because WAN2 is currently providing internet connectivity. As a result, the device is able to report to Nebula, and WAN1's port status may still display as "Up" simply because the cable is physically connected, even though WAN1 itself has no internet access at the moment.

    Zyxel_Judy

  • GiuseppeR
    GiuseppeR Posts: 756 image  Guru Member
    Zyxel Certified Network Engineer Level 1 - Switch Zyxel Certified Network Engineer Level 1 - Nebula 5 Answers First Comment
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    Hi @Zyxel_Judy

    I had the same suspect on its behaviour. Could be possible to add "Port status" and "WAN status"?

    This could be effective also because each ISP connectivity has a "Connectivity check" section when you setup its parameters for routing options.

  • Zyxel_Judy
    Zyxel_Judy Posts: 2,569 image  Zyxel Employee
    Zyxel Certified Network Engineer Level 2 - Nebula Zyxel Certified Network Engineer Level 2 - Switch Zyxel Certified Network Engineer Level 2 - Security Zyxel Certified Network Engineer Level 1 - Nebula
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    Hi @GiuseppeR ,

    Recognizing the potential usefulness of adding actual connectivity check to WAN 'Up' status for users, we are considering this as a potential feature for future evaluation. You can view and contribute to this idea in the following section:

    Adding Actual Connectivity Check to WAN 'Up' Status — Zyxel Community

    Zyxel_Judy

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