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Forum Discussion

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 c...
SW_'s avatar
SW_
Prodigy
Dec 09, 2019

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
Dec 09, 2019

...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
    Dec 09, 2019

    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%.

    • Nteck's avatar
      Nteck
      Tutor
      Dec 09, 2019

      I will give it this last try later today. I hope that's the case! which seems to be the cause based on your description. Then what is the solution?

      • FURRYe38's avatar
        FURRYe38
        Guru - Experienced User
        Dec 09, 2019

         

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

         

        What Firmware is currently loaded?
        What is the Mfr and model# of the ISP modem the NG router is connected too?

        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 RBR and RBS to begin with depending upon building materials when wirelessly connected. https://kb.netgear.com/000036466/How-far-should-I-place-my-Orbi-satellite-from-my-Orbi-router

         

        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).

        Nteck wrote:

        I will give it this last try later today. I hope that's the case! which seems to be the cause based on your description. Then what is the solution?