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perrynmyers's avatar
Sep 27, 2020
Solved

Orbi Showing Wireless Devices as Wired in Attached Devices List

Hi,

 

Issue:

I have found that on RBR50 deployments where there are two satellites connected via Ethernet Backhaul, that the Attached Devices List will incorrectly show which Orbi device a network client is connected to, and if it gets that wrong, will often show Wireless devices as Wired in the list.

 

Details:

I have two different physical locations (houses) with exactly the same router setup. Each site has an RBR50 acting as the primary Router and Orbi. Each site also has an RBR50S and an RBR40V (the Harmon Kardon Orbi Speaker). So, I have 3 Orbi devices at each physical site. The two sites are not connected at all. I am mentioning this because I am able to reproduce the behavior I am seeing at two different sites and installations completely.

 

The two satellites at each location are connected via Ethernet Backhaul and the connection status on each is Good. I am not using 5g Backhaul at all.

 

The behavior I am seeing is that some of the devices on each network, that are wireless only, such as Amazon Echo Dots, iPhones and other Android phones, are showing up as "Wired" in the Attached Devices List. This is, of course, impossible, since none of these devices even have Ethernet ports on them.

 

Not all of the Wireless devices show up incorrectly this way. In my observation, it depends on whether or not the device is listed as associated to the correct Orbi access point. Let me give a concrete example.

 

In site 1, I have an RBR50 in the basement, the RBR40V is on the first floor of the house connected to the RBR50 via Ethernet Backhaul. I have an Ethernet cable also running from the basement out to a detached garage (the distance is about 100 yards). The garage has an RBR50S connected via Ethernet Backhaul as well.

 

I have a generator with Wireless capability (2.4g only). The range on it is such that it SHOULD only be able to connect to the RBR50S in the garage. When I see the generator in the Attached Devices list associated to the RBR50S in the garage, it correctly shows up as connected via 2.4g. However, at other times I will see the generator listed as attached to the RBR50 and sometimes the RBR50S. When it shows up on the Attached Devices list associated to those other Orbi's, the generator shows up as Wired.

 

My hypothesis is that the algorithm for determining which Orbi access point "owns" a particular client device is broken. If the client is associated as attached to the same Orbi that it is using as a wireless access point, then it will properly show up as 2.4g or 5g (as appropriate). If however, the "wrong" Orbi picks it up as attached to it, it will show as Wired, because from the perspective of that Orbi device, it is NOT connected to it via Wireless (because it is connected to some other Orbi as Wireless).

 

This may be an issue with Ethernet Backhaul deployments. I have not tested this using 5g Backhaul to see if the issue persists. But I am able to reproduce it reliably with a random subset of wireless devices at each of the two physical deployments (houses) that I have.

 

Because one of my RBR50 devices is still under warranty for Technical Support, I did file a support case on Aug 30, 2020. Over the last several weeks I have provided screen shots and additional details to the technical support representative but as of yet no assistance has been provided (or ideas about root cause and resolution). I am presently waiting for a callback from their Technical Support engineers to discuss the issue further (but as they have called during times when I have not been available, I have been unable to speak to them as of yet).

 

If anyone else is seeing this behavior, please do weigh in on this thread and let me know what your specific details are. For example, if someone can reproduce this with 5g Backhaul or with only 2 access points (instead of 3, like in my setup) it would be useful to further narrow down what the root cause configuration might be.

 

I will continue to work with Technical Support, but I thought that posting the issue here to crowdsource some additional help would make sense.

 

Thanks!

 

Perry

  • Hi,

     

    I just closed out my support case with Netgear on this issue. It took 4 months (opened in August, finally closed in January) and I spent much of that time being passed back and forth between support associates. But in the end, Netgear finally admitted to me the following about this particular issue.

     

    From Support:

    "I have confirmed with our engineers that the satellite has a limitation with reporting connected devices while its in ethernet backhaul as the router identifies that the wired backhaul connection of the satellite rather than the actual connection of the device to the satellite which are engineers a indicated that it is a limitation in the design of the system.

    I apologize for the inconvenience. Let me know if you have questions or concerns."

     

    I then asked:

    "Is it unfixable and therefore a product flaw that just needs to be lived with?"

     

    And was told:

    "As I have confirmed that this is a limitation as per our engineers. We were only informed of this upon consultation with our engineers and I sincerely apologize if it took awhile to get answers for you."

     

    (Note: This answer from Engineering took 4 months to get to.)

     

    So in short, the way the Orbi system is designed, it is impossible for them to report properly whether a device is Wired or Wireless if any of the satellites are using Ethernet Backhaul.

     

    In my investigation into how the Orbi works (which under the covers appears to use technology provided by Fing to do device discovery), here is what I summarized based on a discussion with technical support at Netgear:

    "After noting that all of the devices incorrectly labeled as Wired were coming from the RBS40V, you suggested that we remove the Ethernet backhaul from that specific satellite to see if it would correct the problem. I did this, and checked the Attached Devices list. I found that the RBS40V no longer reported any Wired devices at all. I also found that the RBR50 Attached Devices list was now 100% correct, and no longer incorrectly listed any wireless devices as Wired. You also mentioned that the Orbi's use Fing's software to do device collection. Perhaps the way the Fing utility is being run on the RBS40V is causing it to collect Wired devices instead of only reporting back the Wireless ones. Again, thank you for the call and helping to do some additional troubleshooting on this. I hope the above notes are helpful."

     

    I also provided a potential software solution that could likely fix the problem:

    "Each device (RBR50, RBS50, RBS40V) collects a list of devices it "sees". Each device knows which clients are connected wirelessly to it, and each device can see ARP requests for devices not connected to it and it detects those devices as "Wired". So, every device is both reporting "Wireless" devices accurately, and reporting "Wired" devices sometimes accurately, and sometimes inaccurately.

    The right way to fix this would be for the RBR50 to have logic that preferred reporting Wireless if it gets conflicting information. For example: RBS40V reports a device as 2.4G, RBR50 reports same device as Wired. The RBR50 should "prefer" the Wireless reporting, since that is more accurate than the Wired reporting, and therefore should display the device as 2.4G. Right now, it appears to be a "random" determination as to whether the RBR50 will pick the Wired or Wireless designation for a device that is reported by multiple Orbi devices.

    Further, Satellites (like the RBS40V and RBS50) can report Wired devices they see to the RBR50, but they should never list those as "locally connected". There's no way to determine if a wired device is connected to one Orbi device or another, so the default should be to always say that Wired devices are solely connected to the primary router (i.e. RBR50)

    If the above logic was put into place, I believe this problem would be resolved."

     

    Given that a user would expect to see Wired and Wireless devices reported accurately, and there is a potential software solution to fixing this issue, I believe this absolutely is classified as a bug.

     

    Netgear has chosen to not fix this issue, and that is of course their perrogative. Not all bugs are of equal priority, and this one being purely cosmetic perhaps does not rise to the level of importance to justify investment in it being fixed. And it could also be that the fix for this would be more invasive than is warranted for an existing deployed system. But, I did suggest to Netgear support that perhaps they could implement what I described above in future generations of Orbi systems if that was indeed a concern.

     

    In the end, the answer I got indicated that it is a limitation of the system. But in a sense, any bug can be waved away as a limitation of the system. A bug is a bug, even if the software vendor chooses not to fix it. I am content with the response I got from Netgear, because they acknowledged this was an issue (by claiming it was a limitation of the design) and eventually letting me know that they would not address it. (I only wish that it didn't require countless hours of my time and literally 4 months to get there...)

     

    On the other hand, this is a bug, and I would hope that in future generations of Orbi software that they fix it, and I believe that the mechanism I suggested above could do that.

     

    If the software was Open Source, I likely could fix this myself... But I could only go so far in trying to fix the issue given that much of the Orbi software are composed of binary blobs without accompanying source code.

     

    Best regards, 

     

    Perry

     

     

21 Replies

  • If you have RBS that are ethernet connected to the RBR, then any wifi devices connected at the RBS will get reported as wired connected devices as the line of status and detection are over the wired ethernet connection between the RBR and RBS, that the RBR uses to report the connection status. If you disconnect the RBS from the wire and let it wirelessly connect, then the status will change from wired to wireless for those devices connected at the RBS. This is normal operation. 

    • perrynmyers's avatar
      perrynmyers
      Star

      That answer doesn't make sense given the explanation I gave in the original post.

       

      Take the wireless connected Generator I mentioned. Sometimes it is detected as being attached vis 2.4g to the Garage Orbi (RBR50S). And sometimes it is detected as being attached via Wired to the Main Orbi (RBR50). On any given day, it'll show up in one state or the other, and toggle later.

       

      If this is normal operation, then why does it "toggle back and forth" between the two states?

       

      Shouldn't it either:

       

      1) Be detected as Wirelessly connected to the Garage Orbi and show as associated with that access point via 2.4g?

      OR

      2) Be detected by the Main Orbi and always show up as Wired, because it is not connected wirelessly to the Main Orbi (as it is connected via 2.4g to the Garage Orbi)

       

      To me, it seems like there is a race condition here, and depending on the outcome of the race, one of the Orbis "wins" and gets to associate the device with it. If Main Orbi wins, it shows up as Wired (associated with that Orbi). If Garage Orbi wins, it shows up as 2.4g (associated with that Orbi).

       

      This may be working "as coded" but I consider this to be a user experience deficiency that should be fixed. It's a bug.

       

      Thanks,


      Perry

      • FURRYe38's avatar
        FURRYe38
        Guru

        Is the system working and is the device working other than the status changing? 

        Possible that the device is connecting to the RBR and when this happens then yes it will report as a wireless device instead of wired. 

        It's up to devices to pick and choose where they connect too. So this one device seems to be changing the connection location from the RBS which are wired to the RBR which would report and wireless. 


        This is not a bug. 

         

        If you feel other wise, then please contact NG support. There would be nothing we can do to effect any FW changes here in the forum. 

         

        Good Luck.