FWA710 No network over ethernet

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  • Luke77
    Luke77 Posts: 12  Freshman Member
    First Comment Friend Collector
    https://community.zyxel.com/en/discussion/comment/79024#Comment_79024

    @Zyxel_Melen Done!

  • Zyxel_Melen
    Zyxel_Melen Posts: 3,850  Guru Member
    Zyxel Certified Network Engineer Level 1 - Switch Zyxel Certified Network Administrator - Switch Zyxel Certified Network Administrator - Nebula Zyxel Certified Sales Associate

    Hi @Luke77

    Following our inspection of the your environment, we confirmed that the cellular WAN signal quality was good at the time of reconnection.
    However, based on the syslogs, we observed that between the evening of July 29 and the morning of July 30, the Cellular WAN 1 interface (via ccmni1/ccmni2) repeatedly went up and down.

    We recommend enabling Network Monitoring on the device to observe whether this behavior stabilizes or improves over time. Path: Go to Network Setting > Broadband > Cellular WAN Enable the "Network Monitoring" option

    Additionally, it will be helpful if you can record the "No network over ethernet" timestamp. This allows us to compare the logs.

    Zyxel Melen


  • Luke77
    Luke77 Posts: 12  Freshman Member
    First Comment Friend Collector

    Ok i enabled Network Monitoring :)

    What should I do now?
    Should I wait for the problem to happen again and let you know here?

  • Zyxel_Melen
    Zyxel_Melen Posts: 3,850  Guru Member
    Zyxel Certified Network Engineer Level 1 - Switch Zyxel Certified Network Administrator - Switch Zyxel Certified Network Administrator - Nebula Zyxel Certified Sales Associate

    Hi @Luke77,

    Please help to monitor for one week. If the issue happens again, please let me know the timestamp and help to check if the Zyxel support access is enabled (usually enable for 21 days when first enable).

    Zyxel Melen


  • Luke77
    Luke77 Posts: 12  Freshman Member
    First Comment Friend Collector
    edited August 1
    https://community.zyxel.com/en/discussion/comment/79107#Comment_79107

    Hi @Zyxel_Melen the issue is occurred right now! 14:27 local time, could you check?

    May be from your side it was around 13:27 of 01/08/2025

    Thanks!

  • Luke77
    Luke77 Posts: 12  Freshman Member
    First Comment Friend Collector
    edited August 2
    https://community.zyxel.com/en/discussion/comment/79107#Comment_79107

    Hi @Zyxel_Melen i'm not sure because i was not in front of my pc, but maybe the issue it's occurred again today 02/08/25 around 9:53 local time, because I had the same symptoms.

    I don't understand where you noticed this "However, based on the syslogs, we observed that between the evening of July 29 and the morning of July 30, the Cellular WAN 1 interface (via ccmni1/ccmni2) repeatedly went up and down." Could you explain where I can see it so that as soon as I have the problem, I can analyse the log to see if the same thing has happened?

  • Zyxel_Melen
    Zyxel_Melen Posts: 3,850  Guru Member
    Zyxel Certified Network Engineer Level 1 - Switch Zyxel Certified Network Administrator - Switch Zyxel Certified Network Administrator - Nebula Zyxel Certified Sales Associate
    edited August 4

    Hi @Luke77

    Thanks for the information. Based on our review, we did not observe any disconnection from the Nebula CC at the reported times, 14:27 on August 1, 2025, and around 09:53 on August 2, 2025 (local time).

    thumbnail_MR connectivity .jpg

    Compared to the previous incidents where the device experienced repeated disconnections from the CC, we’ve seen noticeable improvement in connectivity after enabling Network Monitoring. However, you reported there occurred the same issue. Could you help with these actions?

    1. Export the logs in System Monitor > Log System Log. image.png
    2. Capture a screenshot for page Cellular info. image.png
    3. Do some ping tests to check the connection is disconnected at which device.
      1. Ping Internet, ex 8.8.8.8.
      2. Ping FWA710.
      3. Ping FritzBox.

    Additionally, we found the current SINR is -4, this is not good value. When SINR values below 0, the connection speed will be very low, since This means that there is more noise in the received signal than the useful part, and the probability of losing an LTE connection also exists. We recommend this value should >= 20 dB. Please change the placement to adjust this value.

    About the "Cellular WAN 1 interface (via ccmni1/ccmni2) repeatedly went up and down" logs, we are checking on this and I will update you once I get further information.

    Zyxel Melen


  • Luke77
    Luke77 Posts: 12  Freshman Member
    First Comment Friend Collector
    edited September 12

    @Zyxel_Melen

    Hi, sorry for the delay

    Today it's happened several times, on mi switch the green led about the zyxel cable went black so i had no connection. I can't export logs as you suggest because:

    SCR-20250912-lxol.png

    how can baypass this screen?

  • Luke77
    Luke77 Posts: 12  Freshman Member
    First Comment Friend Collector

    @Zyxel_Melen @Zyxel_Tina @Zyxel_Judy @Zyxel_Cooldia @Zyxel_Emily

    Unfortunately, the problems continue. Today it crashed a couple of times, and I can't even access 192.168.1.1 anymore. The cable connection isn't working, so I turn the antenna off and on again, enabling the Wi-Fi connection directly with it, and it works. I can only access it via its Wi-Fi, but not via cable, where the RJ45 remains off and does not flash. I'm tired of having to constantly pull the plug to get it to work, also because it often works for a few minutes but then everything goes back to how it was before, it stops loading any websites, the RJ45 turns off and I'm forced to unplug and plug it back in.
    I'll give you all the logs you want, but please help me. I work with this connection and I can't lose connectivity so often; it's not reliable.

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