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I have been using Ubuntu for six years. Since 20.04 LTS, the internet access (wifi) drops suddenly and randomly from 20Mb/s for download to 1Mb/s or even below! Sometimes it works flawlessly, sometimes I need to reboot twice a day. Unfortunately, the problem persists in Ubuntu 22.04 too.

I tried out most of the tricks recommended here but with no avail: https://blog.rottenwifi.com/ubuntu-slow-internet/

According to some, the standard 5.15 kernel in Ubuntu 22.04 LTS is responsible for bad wifi behaviour. One guy recommends downgrading to 5.13 the other one prefers upgrading to 5.17: wifi issues in ubuntu 22.04LTS

What to do???

Any suggestion will be greatly appreciated

András Szőllős
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1 Answers1

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Check the configuration of your wifi router and set to follow values if possible:

  • Place your router on a good place. See follow: https://blog.gl-inet.com/my-wifi-is-slow-where-to-place-my-router/

  • Set the right country. Depend on law, different country`s have different count and power of wifi channels. So it shouldn't be set different on your router and your pc.

  • Set your channel selection on you router to auto channel.

  • If possible, use MiMo supporting devices (thats supportted by a part of wifi5 and all WiFi6 devices). This one have a much better handling in environments with a high count of wifi devices.

  • Enable DFS support on your router, if possible. That protect you a little bit about wifi issues around airports, which are related on weather radar.

  • Often you find a menue item on your router like "Do you like to support "b, g, n, ac, ax", if you dont need and if possible, disable "WiFi b and g" on your router.

Alfred.37
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