Oh yeah I had been having the same problem with having the latest version of Avast and ZoneAlarm running.

Thanks! Yes, indeed it was the problem with ZoneAlarm. At first I had stop all the running shields on Avast and my browsing seems to be working again. Later I started all the Avast protection shields back and once again internet access was blocked. After your suggestion, I shutdown my ZoneAlarm, the problem vanished again. I suggested what you said about deleting all the avast rules on ZoneAlarm program control list and again allowed access to internet by Avast. It’s resolved now. Thanks for the suggestion :slight_smile:

PS. Sorry about my poor English.