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Since yesterday I can't connect to my Android's WiFi anymore.

To understand the problem better, I set NetworkManager's monitor log level to "DEBUG" and used the CLI. The error appears after 45 seconds:

# nmcli d wifi connect nico password mypass
Error: Connection activation failed: (5) IP configuration could not be reserved (no available address, timeout, etc.).
Meanwhile via nmcli monitor:
nico: connection profile created
wlp3s0: connecting (prepare)
wlp3s0: using connection 'nico'
NeworkManager is now in the 'connecting' state
wlp3s0: connecting (need authentication)
nico: connection profile changed
wlp3s0: connecting (prepare)
wlp3s0: connecting (configuring)
nico: connection profile changed
wlp3s0: connecting (getting IP configuration)
wlp3s0: connection failed
What is going wrong? How to investigate the problem further and hopefully solve it?
My Android is connected to the Internet (typing from it right now).
No luck with Bluetooth nor with USB cable tethering either.
On the opposite, I can connect to my company's WiFi with no problem.
        
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