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I decided to install Linux for the first time in my life, but I'm faced with the problem of the internet. First I installed Pop!_OS. Everything worked fine for the first half hour, then the Internet disappeared. Not finding a solution, I decided that this is a distribution problem. I installed Manjaro. The problem repeated. Now I installed Ubuntu. It's all the same. Dell Inspiron 17r 5737 laptop. Connected via Wi-Fi to the Xiaomi AХ5400 router.

Problem: the internet works for 30 seconds-30 minutes from the moment of launch. Then the speed drops to zero. At times it appears again for a couple of seconds or minutes and falls again. Everything works on other devices at this time. Everything also works and is stable under Windows. I have a 100mbps optical fiber channel.

My experience as a Windows user tells me that the driver is rather buggy, but since I'm using Linux for the first time I can't detect it and I don't even know how.

I found advice on the internet to manually register DNS in a file. I made changes to 8.8.8.8, but nothing changed. Please help me to figure it out.

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UPD info about system:

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UPDATE: Found an addition! I use a bluetooth speaker for sound. As soon as the Internet starts to glitch, I turn off Bluetooth connection with speaker (bluetooth on) and everything is fine in half a second. It works for a long time, there are short-term drops for a couple of seconds and it rises again. But it's rare. If I connect the speaker - after a minute it drops again.

stumblebee
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Bisquit
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1 Answers1

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Any possibility the built-in WiFi is failing? Years ago I had a similar problem with ‘random connection speed’ and the problem solved by using a WiFi dongle. Might explain the Windows driver is buggy.

Have you tried a wired (Ethernet) connection?

...Ah! Googled a potential clue: Bluetooth can interfere with a Wi-Fi connection , meaning when multiple devices are using this band simultaneously, their signals can overlap and disrupt each other, leading to slower speeds and potential connection drops on either network; especially noticeable when using devices like Bluetooth headphones or speakers near a Wi-Fi router.

Bluetooth uses the 2.4 GHz band (as does microwave ovens, many cordless phones), so switching your laptop to the 5 GHz band could be the solution. ...Though distance is not a friend of the 5 GHz band. Search using ‘Bluetooth interfere with WiFi connection’

Barry Martin
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