Quick way to fix all the Wireless network that require Certificate, you don’t have to provide your certificate.
Use incrontab to pull the trigger automatically when you connect to Wireless network that require Certificate, the script will add a mozilla External Root Certificate when your Network Manager create Wireless SSiD connection on /etc/NetworkManager/system-connections/
sudo -i
incrontab -e
/etc/NetworkManager/system-connections/ IN_CREATE sleep 3; grep -rl ‘system-ca-certs=true’ /etc/NetworkManager/system-connections/ | xargs sed -i ‘/system-ca-certs=true/a ca-cert=/usr/share/ca-certificates/mozila/AddTrust_External_Root.crt’