Avast 6.0.1367
Windowsxp
Comodo Firewall
I’ve been using Avast for a long time without problems but the latest version is blocking Internet access. I uninstalled and reinstalled and added an exception in Comodo. If I stop the web shield everything works normally. I notice some others have this problem too.
Any solution? I’d hate to use another program.
delete all avast rules in comodo and reboot, then let new rules be created
did it work ?
Unintall Comodo, boot, install it again. I suppose you’re not installing CAV.
Comodo shouldn’t be an issue. 
Which SP on XP…??
Other security related software installed…??
I had a similar problem when I upgraded to Internet Security today after the free trial. I could only connect to the internet after I disabled Web Shield completely. Unchecking individual components within the Expert settings did not work. Also, the Firewall could not start regardless of whether Web Shield was disabled or not.
I managed to resolve both problems using “Uninstall or Change a Program” in Control Panel (Win 7) using the “Change” feature. I didn’t make any modification to the check boxes, just clicked “Next”. When it had finished, it was all good.
Hope this helps…
i havent seen comodo blocking the net connection yet…can u tell me which version of comodo do u have?
Comodo 5.8
I have Avast on another computer and it is fine but I haven’t yet upgraded. The previous version was good too so it is definitely the upgrade. Other people are having the same problems. How do I delete all the entries in Comodo? Avast is marked as a Trusted application in Comodo.
update to 5.9 i have 5.9 here…
that should solve the issue. :