Comodo don't work with broadband net

I’ve installed several times Comodo Firewall and when it is intalled the internet doesn’t work, then when uninstall the net back!
My net is the operator: Optimus Kanguru

Comodo Firewall for me is the best firewall, but with this problem I had to uninstall!

How with the option DNS Comodo at installation?

What type of connection are you on? Did you install CIS v 6.3?

Could you try the procedure described in ]No network connection after using Stealth Ports Wizard (DHCP Broken) [v4]?

When that doesn’t work could you post a screenshot of the Firewall logs?