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Cannot connect to internet from wifi from Ubuntu 20.04 after a fresh install

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I did a fresh installation of Ubuntu 20.04 the day before yesterday. Everything was fine until today when I am not able to connect to the internet. I followed this post: Cannot connect to wifi ubuntu server 20.04 fresh installation and the relevant codes and the results are below.

(I am posting this from mobile as I donot have access to another computer that has access to internet, so I am posting the screenshots).

Please help me. Thank you.

$lsb_release -a
$ls
$cat 01-network-manager-all.yaml

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$ip addr show

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$ping -c3 www.google.com
$ping -c3 8.8.8.8
$sudo netplan --debug apply

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$sudo netplan --debug generate

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Then I tried the answer on that question too. wpasupplicant was already installed on my system.

$grep wpa /var/log/syslog

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