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i just installed Ubuntu 22.04LTS for the first time, i conected to my wifi network and it's very slow, but then i conected to my phone hotspot and it was completly fine, then i conected via usb tethering from my phone via the same wifi network it was also fine. I searched a lot, but i can't find anything. can anyone help me? lspci

lnee
  • 806
Muhammad Alaa-Eldin
  • 19
  • Go To W-FI Settings,

    • Your Currently connected Wi-Fi /Access Point Name will be shown.

    • Click on the "settings" icon on the right side of it.

    Details of the connected Wi-Fi are shown.

    • Check the DNS IP being used. Is it the same as the Default Route IP?
    – ByronTaaka Jun 20 '22 at 12:14
  • Use ip link to see your WiFi MTU. If it's 1500 see my answer to https://askubuntu.com/questions/1353705/ubuntu-20-04-wifi-keeps-dropping/1353723#1353723 . Your MTU should be 1492 for WiFi. – waltinator Jun 20 '22 at 13:38
  • I have 3 mtu values, two of them are 1500, and one of them is 65536 – Muhammad Alaa-Eldin Jun 20 '22 at 16:51
  • Please [edit] your question and add output of lspci -knn | grep Net -A3 terminal command. – Pilot6 Jun 22 '22 at 08:00
  • I did sir, i hope you find something. @Pilot6 – Muhammad Alaa-Eldin Jun 22 '22 at 21:25
  • Yes, DNS IP is the same as default route. @ByronTaaka – Muhammad Alaa-Eldin Jun 22 '22 at 21:31
  • Please don't post screenshots of text. – Pilot6 Jun 23 '22 at 07:18
  • I don't understand what should I do, I'm new to this, would you explain more.@Pilot6 – Muhammad Alaa-Eldin Jun 24 '22 at 08:36
  • @MuhammadAlaa-Eldin instead of an image copy and paste text into the question That way people searching for lspci will find this and people wanting to copy your command can also do that. This site is for all not just the peiople that ask questions ;-) – Rinzwind Aug 02 '22 at 18:24