Wifi downlink very slow with MSI B450 Gaming Pro Carbon AC












-1















Today, I assembled a PC using the MSI B450 Gaming Pro Carbon AC as its motherboard. This motherboard comes with wifi. Already before installing Kubuntu 18.04, I noticed that the downlink is terribly slow (highest about 1 Mbit/s, often way below). This stayed the same after booting into the installed operating system.



The wifi's uplink is not affected. It is much faster than the downlink. When I connect my computer and my laptop via a LAN cable and share the laptop's internet connection (same wifi network) with the computer, it has a fast downlink too.



I connected a cheap old wifi stick to the computer. The wifi stick is so cheap and old that it is quite limited itself but even it pulls data with over 60 Mbit/s.



Kubuntu does not list any additional drivers to install.



How can I improve the speed of the on-board wifi?










share|improve this question





























    -1















    Today, I assembled a PC using the MSI B450 Gaming Pro Carbon AC as its motherboard. This motherboard comes with wifi. Already before installing Kubuntu 18.04, I noticed that the downlink is terribly slow (highest about 1 Mbit/s, often way below). This stayed the same after booting into the installed operating system.



    The wifi's uplink is not affected. It is much faster than the downlink. When I connect my computer and my laptop via a LAN cable and share the laptop's internet connection (same wifi network) with the computer, it has a fast downlink too.



    I connected a cheap old wifi stick to the computer. The wifi stick is so cheap and old that it is quite limited itself but even it pulls data with over 60 Mbit/s.



    Kubuntu does not list any additional drivers to install.



    How can I improve the speed of the on-board wifi?










    share|improve this question



























      -1












      -1








      -1








      Today, I assembled a PC using the MSI B450 Gaming Pro Carbon AC as its motherboard. This motherboard comes with wifi. Already before installing Kubuntu 18.04, I noticed that the downlink is terribly slow (highest about 1 Mbit/s, often way below). This stayed the same after booting into the installed operating system.



      The wifi's uplink is not affected. It is much faster than the downlink. When I connect my computer and my laptop via a LAN cable and share the laptop's internet connection (same wifi network) with the computer, it has a fast downlink too.



      I connected a cheap old wifi stick to the computer. The wifi stick is so cheap and old that it is quite limited itself but even it pulls data with over 60 Mbit/s.



      Kubuntu does not list any additional drivers to install.



      How can I improve the speed of the on-board wifi?










      share|improve this question
















      Today, I assembled a PC using the MSI B450 Gaming Pro Carbon AC as its motherboard. This motherboard comes with wifi. Already before installing Kubuntu 18.04, I noticed that the downlink is terribly slow (highest about 1 Mbit/s, often way below). This stayed the same after booting into the installed operating system.



      The wifi's uplink is not affected. It is much faster than the downlink. When I connect my computer and my laptop via a LAN cable and share the laptop's internet connection (same wifi network) with the computer, it has a fast downlink too.



      I connected a cheap old wifi stick to the computer. The wifi stick is so cheap and old that it is quite limited itself but even it pulls data with over 60 Mbit/s.



      Kubuntu does not list any additional drivers to install.



      How can I improve the speed of the on-board wifi?







      networking wifi kubuntu






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      edited yesterday









      Rui F Ribeiro

      40.4k1479137




      40.4k1479137










      asked Feb 9 at 23:38









      UTF-8UTF-8

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          I saw the same issue on Mint 19.1. Kernel 4.20 helped me. I used the "ukuu" tool to update the kernel.
          Maybe some of the earlier version works too, but I have jumped to 4.20 directly. Also, make sure you are using the latest BIOS.






          share|improve this answer
























          • Thank you very much! Merely updating UEFI did the trick! :)

            – UTF-8
            Feb 12 at 14:34











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          1 Answer
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          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          1














          I saw the same issue on Mint 19.1. Kernel 4.20 helped me. I used the "ukuu" tool to update the kernel.
          Maybe some of the earlier version works too, but I have jumped to 4.20 directly. Also, make sure you are using the latest BIOS.






          share|improve this answer
























          • Thank you very much! Merely updating UEFI did the trick! :)

            – UTF-8
            Feb 12 at 14:34
















          1














          I saw the same issue on Mint 19.1. Kernel 4.20 helped me. I used the "ukuu" tool to update the kernel.
          Maybe some of the earlier version works too, but I have jumped to 4.20 directly. Also, make sure you are using the latest BIOS.






          share|improve this answer
























          • Thank you very much! Merely updating UEFI did the trick! :)

            – UTF-8
            Feb 12 at 14:34














          1












          1








          1







          I saw the same issue on Mint 19.1. Kernel 4.20 helped me. I used the "ukuu" tool to update the kernel.
          Maybe some of the earlier version works too, but I have jumped to 4.20 directly. Also, make sure you are using the latest BIOS.






          share|improve this answer













          I saw the same issue on Mint 19.1. Kernel 4.20 helped me. I used the "ukuu" tool to update the kernel.
          Maybe some of the earlier version works too, but I have jumped to 4.20 directly. Also, make sure you are using the latest BIOS.







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Feb 12 at 10:43









          morbmorb

          261




          261













          • Thank you very much! Merely updating UEFI did the trick! :)

            – UTF-8
            Feb 12 at 14:34



















          • Thank you very much! Merely updating UEFI did the trick! :)

            – UTF-8
            Feb 12 at 14:34

















          Thank you very much! Merely updating UEFI did the trick! :)

          – UTF-8
          Feb 12 at 14:34





          Thank you very much! Merely updating UEFI did the trick! :)

          – UTF-8
          Feb 12 at 14:34


















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