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Viking42's avatar
Viking42
Apprentice
Mar 31, 2021

LBR20 internet signal loss

Hello,

 

I hope you can help me, 

On a LRB20, Router Firmware Version V2.6.4.2 ,  located in europe

Connected to a fiber modem with a LAN cable LTE deactivated

 

Issue:
The router emits a wifi signal without Internet
Devices like mobile phones or laptops have wifi connection but no internet connection

 

Timelines:
Issue happens Approx twice a day, since 4 days
We had a year without issue, the issue occured without clear trigger

 

Workaround:
Reboot the router solves the issues

 

Actions done so far:
- Rebooted the Fiber Modem
- Full reset of the LBR20 router
- Deactivated beamforming, Mu-mimo and fast roaming
- checked logs but the only go to the last reboot, so no tracks of what happened before the reboot
- Checked router and satellites updates

 

Any idea what i could do?

The support seems to be valid only 6 months, which is conpletely illegal down here, but-.. 

7 Replies

  • CrimpOn's avatar
    CrimpOn
    Guru - Experienced User

    There is a horrible situation that started with the change in Daylight Saving Time that causes certain Orbi RBR50 routers to stop resolving Domain Names until they are restarted.  Netgear engineers have traced the problem to a coding error in the Traffic Meter feature. Looks like there is abolutely no chance Netgear will release a firmware fix before April, so the easiest solution is to go into the Orbi web interface, Advanced Tab, Advanced Setup, Traffic Meter (toward the bottom of the menu) and uncheck "Enable Traffic Meter" and Apply.

    • Viking42's avatar
      Viking42
      Apprentice

      Disabled the traffic meter and changed the NTP just now, i'll report on how that works 

      • CrimpOn's avatar
        CrimpOn
        Guru - Experienced User

        Please follow up.  Right now, there are SO MANY posts with similar issues that there is a tendancy to think, "this is what everybody else is experiencing."  If it is not, then there this advice may have been not of much use.

  • CrimpOn's avatar
    CrimpOn
    Guru - Experienced User

    Viking42 wrote:

    Hello,

     

    I hope you can help me, 

    On a LRB20, Router Firmware Version V2.6.4.2 ,  located in europe

    Connected to a fiber modem with a LAN cable LTE deactivated

     

    Issue:
    The router emits a wifi signal without Internet
    Devices like mobile phones or laptops have wifi connection but no internet connection

     

    Timelines:
    Issue happens Approx twice a day, since 4 days
    We had a year without issue, the issue occured without clear trigger

     

    Workaround:
    Reboot the router solves the issues

     

    Actions done so far:
    - Rebooted the Fiber Modem
    - Full reset of the LBR20 router
    - Deactivated beamforming, Mu-mimo and fast roaming
    - checked logs but the only go to the last reboot, so no tracks of what happened before the reboot
    - Checked router and satellites updates

    When this situation began, people soon discovered that the apparent problem is the Orbi stops resolving Domain Names into IP addresses.  When they would 'ping' some place by IP, it would work. (for example 1.1.1.1 or 8.8.8.8 succeeds) But, when they would ping by domain name, it would not. (one.one.one.one or dns.google fails)  Early attempts to find a solution  centered on how to move DNS resolution off the Orbi (set up a separate DHCP/DNS server, log into via telnet and restart the dnsmasq process, create a script to constantly reboot the process). Some people discovered that removing the "Automatic adjustment for DST" worked.  Then, Netgear engineers announced that Traffic Meter was the root cause.

     

    With no DNS resolution, almost everything fails to work.

     

    The next time your system "drops", can you experiment to determine if  DNS resolution is failing?