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I've come across very strange problem trying to connect to my home wifi, which is provided by a T-Mobile Alcatel router, from Ubuntu (20.04) on my Dell XPS 13 9370. Every time I try to connect it fails with the message:

Authorization supplicant timed out

Removing the password protection from the network and clearing the saved network info had no effect.

Most notably:

  • I've no issues connecting to any other WiFi-network.
  • All other devices, aside from my laptop, can connect to the router just fine. (among them several linux devices)
  • The problem has persisted even on a fresh install of Kubuntu 20.04
  • None of the obvious quick-fixes, like restarting the network adapter, had any effect. (Though I'm more than happy to try anything again if you have a suggestion)

The info of the wireless debugging as mentioned in an answer to this question.

Any ideas for solutions or suggestions on how to more adequately debug the problem would be greatly appreciated!

someone_000
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2 Answers2

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i faced the same problem, on Pop!_os with my Alcatel router (Orange 4G network) by installing iwd

install iwd

sudo apt-get update && sudo apt-get install iwd

then ensure connection to the service by

sudo systemctl enable iwd.service

start the service

sudo systemctl start iwd.service

Next open /etc/NetworkManager/NetworkManager.conf and add

wifi.backend=iwd

to the [DEVICES] section.

References to this question here Problem with connection to wifi on Ubuntu 20.04

AhmedNour
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I had the same problem in France with my Bouyges Telecom router.

I fixed it by logging into a Gnome session and connecting the WiFi in that session, then logging off and back into Plasma. The connection remained in Settings/Connections and works fine.

I suspect the problem is that the Plasma sessions fires off a password request but does not provide a UI, so the connection times out.

Devany
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