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PrayJ's avatar
PrayJ
Aspirant
Jul 11, 2022

Extremely slow speed r8300

Hi I am getting very slow speeds through my router. I have R8300 router and a CM1000 modem, using it with Xfinity Comcast. This issue started out of nowhere and without any input from me. Comcast ha...
michaelkenward's avatar
michaelkenward
Guru - Experienced User
Jul 11, 2022
PrayJ wrote:

Hi

I am getting very slow speeds through my router.

Measured how? Measured where? Connected how? Wifi? Wired?

 


Direct connection to my laptop using an ethernet cable gives me a steady 900mbps+ speed.

 

 

From laptop to what? Modem? Router?

 

 

  • plemans's avatar
    plemans
    Guru - Experienced User
    Jul 11, 2022

    What actual speeds are you getting wired into the router? 

    When you reinstalled after the firmware update, you put you left qos off. did you also make sure to leave parental controls, access controls, and traffic monitoring off? If they were ever enabled, factory reset again and during the reinstall, leave those disabled. 

    Did you reinstall from a backup? If so, don't. 

    • PrayJ's avatar
      PrayJ
      Aspirant
      Jul 11, 2022

      Thanks plemans 

       

      There is no speed issues with a wire connection to the router - steady 900mbps speeds.

       

      QOS, Parental Control, Access Control, Traffic Monitoring were never turned ON or enabled before or after the reinstall.

      No reinstall from backup. This was a fresh reset to factory settings. The only things that are the same are the SSID ID and passwords. I did not change those as I have many smart devices connected to it.

       

      Thanks.

      • plemans's avatar
        plemans
        Guru - Experienced User
        Jul 11, 2022

        do you have ipv6 enabled?

        Try enabling that. 

        If it doesn't help, try downgrading the firmware a version. 

  • PrayJ's avatar
    PrayJ
    Aspirant
    Jul 11, 2022

    Thanks for replying michaelkenward  

     

    Measured:

     

    1.Using ethernet cable connected directly to a laptop and a desktop. 

    2. Wirelessly with a cell phone, tablet and a laptop in close proximity to the router.

     

    Internet connection is through the modem (CM1000) to the router and from the router to the device using ethernet cable. 

    I have changed the cables to rule out faulty equipment. 

     

    This same setup was working perfectly fine for a number of years. 900mbps+ speeds through ethernet connection. 500mbps+ wirelessly. Now it is crawling at barely 2mbps. Ethernet connection to the laptop through the router is perfect - steady 900mbps.

     

    Thanks.