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bariswheel's avatar
bariswheel
Aspirant
Sep 18, 2019

Orbi rbk50 90% performance drop over 2-3 days, memory leak?

I found another post, it seems there are hundreds of people reporting symptoms where their 300Mbps connection drops to 30Mbps. Completely unacceptable known issue. 

 

I updated the firmware but I can still reproduce the problem. It's not my cable modem, I have a 500Mbps line that consistently falls back down to 30Mbps.

 

This is exactly what's happening with my Orbi system. I called their technical support and they attempted to charge me $50 to look into the problem. I've owned this $300 pair for only 18 months, and Orbi cannot own a serious memory leak issue impacting CORE performance, primary problem this product is supposed to solve.

 

https://www.amazon.com/gp/product/B01K4CZOBS/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

 

This is BBB worthy.

 

42 Replies

  • FURRYe38's avatar
    FURRYe38
    Guru - Experienced User

    Has a factory reset and setup from scratch been performed since last FW update? 

    Is this wireless or wired speed testing? Wired is preferred for speed testing?

    Compare speed results with different devices? 

     

    What is the Mfr and model# of the ISP modem the NG router is connected too?
    Is the Orbi system operating in Router or AP mode?

    What is the size of your home? Sq Ft?
    What is the distance between the router and satellite(s)? 30 feet is recommended in between them to begin with depending upon building materials when wirelessly connected.

     

    What channels are you using? Auto? Try setting manual channel 1, 6 or 11 on 2.4Ghz and any unused channel on 5Ghz.
    Any Wifi Neighbors near by? If so, how many?

     

    Try enabling Beamforming and MIMO(MIMO may or maynot be needed) and WMM. Under Advanced Tab/Advanced Settings/Wireless Settings

    Try disabling the following and see:
    Armor, Circle, Daisy Chain, Fast Roaming, IPv6 and Set 20/40Mhz Coexistence to 40Mhz only. Save settings and reboot the router and satellite(s).

     

    What was the last version of FW that was working for you? 

     

     

    • bariswheel's avatar
      bariswheel
      Aspirant

      Has a factory reset and setup from scratch been performed since last FW update? 

       

      No.  Should I and try to repro?

       

       

      Is this wireless or wired speed testing?

       

      Wireless. Again after a power cycle, no changfes to anything, performance jumps back up to 200Mbps+

       

      Wired is preferred for speed testing?

       

      Doesn't matter as I already have a control, but sure I suppose I can plug in a laptop if I can find an ethernet adapter, but I can consistently reproduce the issue.

       

      Compare speed results with different devices? 

       

      Yes, same results. Ipad and mobile phone also reporty 30Mbps. Google 'memory leak' orbi and you'll notice very similar reports, same issue, many other people reporting identical symptoms.

       

      What is the Mfr and model# of the ISP modem the NG router is connected too? Why does this matter? I don't know right now I can find out later.


      Is the Orbi system operating in Router or AP mode? How do I find out?

      What is the size of your home? Sq Ft? 2000 sq ft, again doesn't matter as I already get 200Mbps+ results consistenly until I have to power cycle.


      What is the distance between the router and satellite(s)? 30 feet is recommended in between them to begin with depending upon building materials when wirelessly connected. Maybe 20 ft

       

      What channels are you using? Auto? Try setting manual channel 1, 6 or 11 on 2.4Ghz and any unused channel on 5Ghz. I don't remember.
      Any Wifi Neighbors near by? If so, how many? Doesn't matter, I can reproduce problem and experiment in a controlled experiment. But maybe 20 or so.

       

      Try enabling Beamforming and MIMO(MIMO may or maynot be needed) and WMM. Under Advanced Tab/Advanced Settings/Wireless Settings

      Try disabling the following and see:
      Armor, Circle, Daisy Chain, Fast Roaming, IPv6 and Set 20/40Mhz Coexistence to 40Mhz only. Save settings and reboot the router and satellite(s).

       

      Ok I'll try all this above thank you.

       

      What was the last version of FW that was working for you? 

       

      the latest I downloaded a few weeks ago, the problem was happening before and after the firmware upgrade, so, sadly, the firmware upgrade had NO effect on the symptoms reported. The problme continues to exist.

      • FURRYe38's avatar
        FURRYe38
        Guru - Experienced User

        bariswheel wrote:

        Has a factory reset and setup from scratch been performed since last FW update? 

         

        No.  Should I and try to repro?

        Yes please. 

         

        Is this wireless or wired speed testing?

         

        Wireless. Again after a power cycle, no changfes to anything, performance jumps back up to 200Mbps+

         

        Wired is preferred for speed testing?

         

        Doesn't matter as I already have a control, but sure I suppose I can plug in a laptop if I can find an ethernet adapter, but I can consistently reproduce the issue.

        Just trying to narrow this down to wifi only if possible. If wired gets good speed constantly, then we can hopefully figure out what wrong with the wifi.

         

        Compare speed results with different devices? 

         

        Yes, same results. Ipad and mobile phone also reporty 30Mbps. Google 'memory leak' orbi and you'll notice very similar reports, same issue, many other people reporting identical symptoms.

         

        What is the Mfr and model# of the ISP modem the NG router is connected too? Why does this matter? I don't know right now I can find out later.

        Would like to know if this modem has built in router and wifi or not is all. 


        Is the Orbi system operating in Router or AP mode? How do I find out?
        Under Advanced Tab/Advanced Setting/Router or AP mode


        What is the size of your home? Sq Ft? 2000 sq ft, again doesn't matter as I already get 200Mbps+ results consistenly until I have to power cycle.


        What is the distance between the router and satellite(s)? 30 feet is recommended in between them to begin with depending upon building materials when wirelessly connected. Maybe 20 ft

        20 feet is too close between the RBR and RBS. The wifi signal has too much over lap and maybe causing problems. 

         

        What channels are you using? Auto? Try setting manual channel 1, 6 or 11 on 2.4Ghz and any unused channel on 5Ghz. I don't remember.
        Any Wifi Neighbors near by? If so, how many? Doesn't matter, I can reproduce problem and experiment in a controlled experiment. But maybe 20 or so.

        You maybe in a wifi congested area which also can cause problems such as interference and noise which would contribute to bad wireless behavior. I would try turning down the power output of the RBR from 100% to say 75 or 50% Under Advanced Tab/Advanced Settings.  

         

        Try enabling Beamforming and MIMO(MIMO may or maynot be needed) and WMM. Under Advanced Tab/Advanced Settings/Wireless Settings

        Try disabling the following and see:
        Armor, Circle, Daisy Chain, Fast Roaming, IPv6 and Set 20/40Mhz Coexistence to 40Mhz only. Save settings and reboot the router and satellite(s).

         

        Ok I'll try all this above thank you.

         

        What was the last version of FW that was working for you? 

         

        the latest I downloaded a few weeks ago, the problem was happening before and after the firmware upgrade, so, sadly, the firmware upgrade had NO effect on the symptoms reported. The problme continues to exist. OK


         

  • bariswheel , interesting theory about memory leak!

     

    Please point the browser at http://192.168.1.1/debug.htm and verify this theory.  For those who ran into this problem, please check your respective Orbi debug.htm page for memory usage and upload these info here if possible.

     

    Basic Infomation
     	CPU Load	                13.9706%
            Memory Usage(Used/Total)	138MB/495MB
            Flash Usage(Used/Total)	        2945MB/4096MB
            Network Session(Active/Total)	44/65536
    • SW_'s avatar
      SW_
      Prodigy

      ...some folks reported that it's impacting only the Satellite and not main Orbi itself.  If that's the case, please get the debug.htm from the affected Satellites.  Here is an example of my healthy Satellites debug info:

       

      Satellite-1:
      Basic Infomation CPU Load 17.2577% Memory Usage(Used/Total) 124MB/495MB Flash Usage(Used/Total) 2945MB/4096MB Satellite-2: Basic Infomation CPU Load 22.2222% Memory Usage(Used/Total) 123MB/495MB Flash Usage(Used/Total) 2945MB/4096MB
      • SW_'s avatar
        SW_
        Prodigy

        One factor that could negatively impact throughput/speed is high CPU usage.  To monitor Orbi/Satellite CPU usage, please do this:

         

        1. Enable telnet via debug.htm page
        2. telnet into Orbi
          • telnet 192.168.1.1
        3. type this cmd at the telnet window
          • top

        Repeat the same steps and replace Orbi IP address with IP address of the Satellite you want to monitor.  CPU usage should be less 30% and should not anywhere near 100%.