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Forum Discussion

orbi7500's avatar
orbi7500
Follower
Mar 28, 2019

401 Unauthorized Access (RBR50)

When trying to access some websites (not all), I am prompted to login to the router.  This is happening on all devices (OSX 10.14, OSX 10.13, and iOS 12.1).   You can see in the attached screensh...
Tom_M480's avatar
Tom_M480
Tutor
Mar 28, 2019

I have not had a problem with my wifi for 6 months or so, starting yesterday, I have the same problem. Just certain web pages, it asks for name and password. Having hard time finding a fix.

  • Tom_M480's avatar
    Tom_M480
    Tutor
    Mar 28, 2019

    Just logged in remotely from my laptop. A message popped up telling me I had an ip conflict between  my modem and my router. The orbi router assigned a new ip address automatically and now I'm able to access all websites without a login in popup! (so far/ fingers crossed)

    • Chuck_M's avatar
      Chuck_M
      Mentor
      Mar 28, 2019

      Can both of you describe what equipment (make/model) your orbi is plugged into connecting you to the internet?

       

      Also, do you have custom or auto DNS'?

    • schumaku's avatar
      schumaku
      Guru - Experienced User
      Mar 28, 2019
      Tom_M480 wrote:

      Just logged in remotely from my laptop. A message popped up telling me I had an ip conflict between  my modem and my router. The orbi router assigned a new ip address automatically ...

      This happens when the previously used LAN subnet (default 192.168.1.0/24, router on 192.168.1.1 as default gateway) does overlap with the WAN/Internet address/subnet assigned by your ISP _or_ under some conditions. A "popular" one are Cable TV routers or modems which fall back to the same 192.168.1.0/24 subnet after a power failure/uplink connection failure for the time before the cable modem/router is properly  provisioned by the ISP from the headend again.

       

      Contributing factors here are 

      • deprecated usage of fixed default IP addresses on ISP equipment (nowadays ZeroConfig should be used)
      • inability to disable this smart-a** feature on the Netgear routers like Orbi Pro, Orbi, Nighthawk, ... for an uncontrolled change of the LAN IP subnet  

      NaderA a control to stop this supposedly consumer "friendly" design which does cause more problems in reality than what it does resolve must be added to the Orbi Pro at least.