enable firewall button goes back itself to dissable firewall

Asked by Ale Costamagna

When trying to enable the firewall in a new installation of linux mint cinnamon 19.3, I cannot get the enable firewall button to stay enable, it goes back itself to disable every time I tried, after a few seconds. I tried closing right away the menu after enabling but when I reopen is disabled. I also tried restarting the machine and is always disable. Any hint on how to fix this? This is my first try at linux... Thanks! Ale

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Ale Costamagna
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Ale Costamagna (accostamagna) said :

Problem solved! Sorry for the trouble, a few restarts seems to have fix the issue, firewall is now on!
Cheers, Alex

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costales (costales) said :

You're welcome!
Best regards and wish a happy new year!