firewall on= limited access, off= ok

Hi guys, Comodo was working me fine, until the last update,that it makes very often my conection with an exclamation mark, (limited access) should i uninstall comodo and reinstall or is a known bug? i have to turn off the firewall to be able to surf the web. I use windows 7.

See if you have ARP cache protection enabled. If so please disable it until an update that is scheduled for today.

Try the following suggestions by Ronny and Panic and see if they help you out:

yes, i have arp protection enable, i will disable it, thanks

The updates have been resumed. You can just download the update that should fix the ARP problem.