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clemtys's avatar
clemtys
Star
Sep 20, 2020

LBR20 - 4G/LTE as failover doesn't work flawlessly

Hi everyone, as suggested by a fellow user in the "Orbi" Forum, I repost my question here trying to get an well informed answer from the community.   I've got an issue with my LBR20 configuration...
Mstrbig's avatar
Mstrbig
Master
Sep 21, 2020
clemtys wrote:

 

I believe I configured it correctly (failover mode is enabled), however when the broadband connection fails, the router takes a long time (several minutes) to switch to the 4G/LTE connection (when it does, sometimes it doesn't switch at all).

 

And then, when the cable broadband connection comes back up, the LBR20 never switches back to the cable broadband connection. It's stuck with the 4G/LTE connection until I reboot the LBR20 and the cable modem.

Thank you for your help.

Was this purchased new or used? If new, you could always contact Netgear and get a replacement.

A few questions?

Who is your ISP and what equipment did they provide?
What is the current firmware on your Orbi device?
What device is your Orbi router connected to?
Is your Orbi router in router mode or AP mode?

Do you have any protection features enabled on the LBR20?
Did you reboot your ISP modem/router, before starting the Orbi router install?
Have you changed the network cable connected from the ISP device to your Orbi router?
Are your satellites wired or wireless?

 

I would try these settings:

Disable Circle, Armor, Daisy Chaining, Fast Roaming, IPv6 and uncheck 20/40Mhz Coexistence.
Enable WMM, Implicit BeamForming, Mu-MIMO
Set Short preamble mode. Save settings, reboot Orbi.

If none of this help, I would start from the very beginning and factory reset the LBR20 and, if possible, configure as a router.

  • clemtys's avatar
    clemtys
    Star
    Sep 21, 2020

    Thanks a lot for your answer. Let me answer your questions. Hope this helps.

     

    Was this purchased new or used? If new, you could always contact Netgear and get a replacement.
    It was purchased brand new from Amazon on July 31st. Maybe I'll contact Amazon or Netgear.

     

    A few questions?
    Of course.

     

    Who is your ISP and what equipment did they provide?
    It's SFR (France). They provide the Sagemcom f@st 3686 v1b cable modem. I put it in bridge mode to let the Orbi do the routing and DHCP part.

     

    What is the current firmware on your Orbi device?
    V2.5.2.20. Apparently, it's the last available firmware version.

     

    What device is your Orbi router connected to?
    It's connected to the cable modem on the WAN port and to a patch panel distributing the entire house (RJ45)

     

    Is your Orbi router in router mode or AP mode?
    It's in router mode (the AP mode is not available (greyed)).

     

    Do you have any protection features enabled on the LBR20?
    Not as far as I know. But I'll give it a check out this evening.
    I refused Circle, disabled Armor, IPv6 is greyed. Concerning the other advices you give (Disabling Daisy Chaining, Fast Roaming, etc.), I'll check this evening. Those settings don't ring a bell right now ;)


    Did you reboot your ISP modem/router, before starting the Orbi router install?
    I'm not sure, I did a lot of reboots then :)

     

    Have you changed the network cable connected from the ISP device to your Orbi router?
    Yes, I changed the cable just to eliminate it as a responsible of the dysfunction.

     

    Are your satellites wired or wireless?
    I've one satellite, it's wired through the patch panel.

     

    Thanks a lot for your help. I'll try to follow your advice and restart the configuration from scratch.

    • Mstrbig's avatar
      Mstrbig
      Master
      Sep 21, 2020
      clemtys wrote:

      Thanks a lot for your answer. Let me answer your questions. Hope this helps.

       

      Are your satellites wired or wireless?
      I've one satellite, it's wired through the patch panel.

      What patch panel are you referring to, what brand, and is the patch panel before or after the LBR20, or in between the LBR20 and satellite.

      Which brings up another question, is your LBR20 directly connected to your ISP modem/router or is it connected to a switch or patch panel?