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Toolguns's avatar
Toolguns
Aspirant
Sep 01, 2019
Solved

XR450 Nighthawk - Slower speeds than my default Spectrum Modem?

I'm having issues with internet speeds using my new XR450 Nighthawk Router and would like some help in figuring out what is happening. 

 

1.  First time I installed it and configured through DUMAS, the WIFI speeds were outstanding at 125mbs DL and 15 MB UP on WIFI ONLY, when I tried via ethernet however, the download speeds were only 43mb down and 5 UP.    So, this was very wierd to me, as originally with my Spectrum Modem that down has always been 100MB and 10 UP, so i was expecting the same or more via ethernet with my new XR450 router.


2.  I checked all Ethernet Cables by testing again using only the Spectrum Modem straight into my PC and I saw the usual 100MBS and 10UP so that ruled out any problems with ethernet cables...

 

3. I went back to reinstall XR450 with DUMAOS again from scratch (after unplugging both Modem and unplugging the XR450 and reconfigured using the wizard tool in DUMAOS), during SETUP I checked the internet speed in the DUMAOS app and was impressed with 117MB DOWN and 15UP, so I thought I was in the clear this 2nd time around setting up my router... 

 

Come to find out, I just rechecked my internet speeds on 2 different websites and I'm back down 50MBS / 5 UP and this time BOTH on WIFI and ETHERNET the speeds are testing the same at 50MBS / 5 UP!   (See #1 above, doesn't make sense with the variation in test results, first time I setup the WIFI WORKED PERFECT, but Wired was half the speed and now after setting up a 2nd time both Ethernet and Wifi Speeds are whack!)

 

I've verified Firmware is up to date and after doing some searches I also already disabled QOS and ANTI-BUFFERBLOAT is set to NEVER.  

 

I don't know what else to try...   Do I have a defective unit?  

  • Even more so I think this is due to your PC ethernet adapter, I'd even suggest perhaps replacing this (if possible) or finding a 1gps USB to ethernet adapter and testing with that (could take back for refund if it doesn't work) and see if that is the cause. The only device this is happening on is that one so that is where I would look first. You can get higher than you pay for sometimes, depends on the demand in the area usually. Yes possible their modem locked speeds down as well.

22 Replies

  • Have you got an ethernet switch hanging around? If so you could try putting that in between the XR450 and your ethernet devices. I've heard that can help. It sounds like it could be a defective unit, but I have heard of this problem before. What have you got the XR450 connected to upstream? There might be a link between everybody this is happening to such as not using a dedicated modem upstream.

    • Toolguns's avatar
      Toolguns
      Aspirant

      Hi Alex,
      I do not have an ethernet switch handy...

      I don't know what you mean by connected to upstream, i just did the same as my last router and plugged modem into the internet ethernet on the xr450.  I see a lot of posts of this similar issue, not sure what to do next. 

      • FURRYe38's avatar
        FURRYe38
        Guru - Experienced User

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

         

        My XR450 is working and getting to spec speed on a 200/10 cable connection. C7800 modem in bridge mode.