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Wi-Fi slower on Debian 9 than Windows 7 on the same PC

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phoenix_art
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Wi-Fi slower on Debian 9 than Windows 7 on the same PC

#1 Post by phoenix_art »

Dear Community!

I've got dualboot with Debian 9 and Windows 7 - both x64 - on a DELL LATITUDE E6430s. When I do speedtest on speedtest.net I got 50 Mbit slower speed on Debian than Windows.

My /etc/modprobe.d/iwlwifi.conf ->

"options iwlwifi bt_coex_active=0 swcrypto=1 11n_disable=8"

What could I do?

Thanks!

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smoki
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Re: Wi-Fi slower on Debian 9 than Windows 7 on the same PC

#2 Post by smoki »

Try commenting out that option and reboot, Debian page says to use this workaround if you have radio conflict with WiFi if you use Bluetooth:

https://wiki.debian.org/iwlwifi#Troubleshooting

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Re: Wi-Fi slower on Debian 9 than Windows 7 on the same PC

#3 Post by phoenix_art »

Thanks for the tip, but unfortunately I got less speed after reboot.
smoki wrote:Try commenting out that option and reboot, Debian page says to use this workaround if you have radio conflict with WiFi if you use Bluetooth:

https://wiki.debian.org/iwlwifi#Troubleshooting

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smoki
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Re: Wi-Fi slower on Debian 9 than Windows 7 on the same PC

#4 Post by smoki »

Revert that back then, or as seems you are affected by this let it stay but disable bluetooth service (as root or sudo):

Code: Select all

systemctl disable bluetooth.service 
Or blacklist bluetooth and/or btusb kernel module/s...

Code: Select all

nano /etc/modprobe.d/blacklist.conf
and put in it:

Code: Select all

blacklist btusb
Reboot... it is shot in the dark, i have no idea how these conflict really.

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Re: Wi-Fi slower on Debian 9 than Windows 7 on the same PC

#5 Post by phoenix_art »

I had disabled already, because I usually don't use btooth.

Thanks anyway.

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Head_on_a_Stick
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Re: Wi-Fi slower on Debian 9 than Windows 7 on the same PC

#6 Post by Head_on_a_Stick »

Does it perform any better without the configuration file?

My Intel wireless cards seem to perform similarly under both GNU/Linux and Windows (and OpenBSD), fwiw.
deadbang

phoenix_art
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Re: Wi-Fi slower on Debian 9 than Windows 7 on the same PC

#7 Post by phoenix_art »

I got the solution, now the speed is almost better than on Windows! :)

https://www.reddit.com/r/debian/comment ... on_debian/

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