wifi not working

[Debianuser1]

I have done clean installations for various Debian distros, but i can not make my wifi work. it works in older version of Debian
I have read some of the recommendations form others in the forum, but their issue at some point or another differs from mine.
I have an Asus UX50V Lap top, intel wifi link 5100. I need help to get it to work

[4D696B65]

https://wiki.debian.org/iwlwifi

[stevepusser]

nonfree package "firmware-iwlwifi". If that doesn't get it to work, yours may be hard or soft blocked, but only "it doesn't work" is quite useless for troubleshooting.

[Debianuser1]

I have the non-free packages installed. the wifi does work in older versions, I kept a copy of an older version to check if the wifi card was working and it does. In latest version is not working

[Head_on_a_Stick]

Have you checked

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/usr/sbin/rfkill

[sandwich]

In my case on Debian 10, the networking service was attempting to bring up an interface with a name that does not exist on my machine. This was causing the whole networking service to fail (so no wifi either). You can check on your machine with

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systemctl status networking.service

On my machine, the solution was to modify this file: /etc/network/interfaces.d/setup and remove all the lines that mentioned the non-existent interface.

Hope that helps

[Head_on_a_Stick]

Find the interface name with

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ip link