NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.

Forum Discussion

whynotme's avatar
whynotme
Aspirant
Mar 20, 2020

RBK50 drops to 30Mbps every couple of hours, must reboot to fix

Just installed RBK50 Orbi Triband Mesh AC3000 system and after a few hours, the speeds drop to below 50 Mbps and the only thing I can do to fix is reboot.  I've now rebooted my system 5 times in 24 hours.  I'm running the latest firmware 2.5.1.8 and Netgear support had me set the MTU to 1492.  It was set at 1500.  Right after a reboot and for a few hours after I can get close to 600Mbps on my phone (Galaxy S10).  Then it drops back down below 50Mbps after 2-3 hours.  Anyone see this before and have a fix?  Not sure what's happening to make it suddenly lose speed like that.  Thanks in advance.

6 Replies

  • Retired_Member's avatar
    Retired_Member

    whynotme wrote:

    Just installed RBK50 Orbi Triband Mesh AC3000 system and after a few hours, the speeds drop to below 50 Mbps and the only thing I can do to fix is reboot.  I've now rebooted my system 5 times in 24 hours.  I'm running the latest firmware 2.5.1.8 and Netgear support had me set the MTU to 1492.  It was set at 1500.  Right after a reboot and for a few hours after I can get close to 600Mbps on my phone (Galaxy S10).  Then it drops back down below 50Mbps after 2-3 hours.  Anyone see this before and have a fix?  Not sure what's happening to make it suddenly lose speed like that.  Thanks in advance.


    I'm going to bet the FW 2.5.1.8 is your problem.  When/how did you get it?

    • whynotme's avatar
      whynotme
      Aspirant

      It updated automatically when I installed the system yesterday.  


      Retired_Member wrote:

      whynotme wrote:

      Just installed RBK50 Orbi Triband Mesh AC3000 system and after a few hours, the speeds drop to below 50 Mbps and the only thing I can do to fix is reboot.  I've now rebooted my system 5 times in 24 hours.  I'm running the latest firmware 2.5.1.8 and Netgear support had me set the MTU to 1492.  It was set at 1500.  Right after a reboot and for a few hours after I can get close to 600Mbps on my phone (Galaxy S10).  Then it drops back down below 50Mbps after 2-3 hours.  Anyone see this before and have a fix?  Not sure what's happening to make it suddenly lose speed like that.  Thanks in advance.


      I'm going to bet the FW 2.5.1.8 is your problem.  When/how did you get it?


       

      • whynotme's avatar
        whynotme
        Aspirant

        I should add that I'm running a brand new CM1150V modem.

  • 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. Set Short preamble instead of Long preamble modes. Save settings and reboot the router and satellite(s).

     

    Has a factory reset and setup from scratch been performed since last FW update? I would do this if you haven't. 

     

    Set the MTU value back to 1500, 1492 or less is for DSL ISP services. Cable services use 1500. 


    whynotme wrote:

    Just installed RBK50 Orbi Triband Mesh AC3000 system and after a few hours, the speeds drop to below 50 Mbps and the only thing I can do to fix is reboot.  I've now rebooted my system 5 times in 24 hours.  I'm running the latest firmware 2.5.1.8 and Netgear support had me set the MTU to 1492.  It was set at 1500.  Right after a reboot and for a few hours after I can get close to 600Mbps on my phone (Galaxy S10).  Then it drops back down below 50Mbps after 2-3 hours.  Anyone see this before and have a fix?  Not sure what's happening to make it suddenly lose speed like that.  Thanks in advance.


     

    • Retired_Member's avatar
      Retired_Member

      FURRYe38 wrote:

      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. Set Short preamble instead of Long preamble modes. Save settings and reboot the router and satellite(s).

       

      Has a factory reset and setup from scratch been performed since last FW update? I would do this if you haven't. 

       

      Set the MTU value back to 1500, 1492 or less is for DSL ISP services. Cable services use 1500. 


      whynotme wrote:

      Just installed RBK50 Orbi Triband Mesh AC3000 system and after a few hours, the speeds drop to below 50 Mbps and the only thing I can do to fix is reboot.  I've now rebooted my system 5 times in 24 hours.  I'm running the latest firmware 2.5.1.8 and Netgear support had me set the MTU to 1492.  It was set at 1500.  Right after a reboot and for a few hours after I can get close to 600Mbps on my phone (Galaxy S10).  Then it drops back down below 50Mbps after 2-3 hours.  Anyone see this before and have a fix?  Not sure what's happening to make it suddenly lose speed like that.  Thanks in advance.


       


      :smileysad: