Score:1

My USB Wifi is very slow on Ubuntu 20.04

de flag

My wifi is very slow on Ubuntu 20.04. This is not a problem on Windows. To verify I did a fresh install of Ubuntu 20.04, everything was okay until I updated Ubuntu.

When I restarted my computer after installing updates,

  1. My wifi was showing very weak signal in the Ubuntu UI.
  2. The internet was very slow.

How do I fix this? I think it has something to do with the update I ran.

This is the output of lsmod | grep rtl

btrtl                  24576  1 btusb
bluetooth             688128  51 btrtl,btintel,btbcm,bnep,btusb,rfcomm

Output of lsusb command

Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 005: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)
Bus 001 Device 004: ID 1c4f:0202 SiGma Micro Usb KeyBoard
Bus 001 Device 003: ID 275d:0ba6  USB OPTICAL MOUSE 
Bus 001 Device 007: ID 2357:010c TP-Link TL-WN722N v2
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Pilot6 avatar
cn flag
Should we guess what is "your wifi"? My Wi-Fi isn't slow. Why `rtl`? Is it USB or PCI?
Pilot6 avatar
cn flag
Please [edit] your question and add output of `lsusb` terminal command.
Yasser Hussain avatar
de flag
I use USB Wifi adapter.
Pilot6 avatar
cn flag
So what is the adapter?
Yasser Hussain avatar
de flag
Its a TP-Link adapter. Does the lsbusb command answer your question :)?
Pilot6 avatar
cn flag
Now you can search by the adapter and find drivers for it.
Yasser Hussain avatar
de flag
Is it necessary to install drivers manually? My wifi worked flawlessly until a few weeks ago.
Pilot6 avatar
cn flag
There may be a lot of reasons why Wi-Fi is slow, e.g. neighbors, etc. It maybe not related to the OS at all.
Yasser Hussain avatar
de flag
It is a Ubuntu related issue cause it works much better on Windows like I said in my original question.
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