As David pointed out, that program (ashweb) needs access.
I also use ZoneAlarm and have mine set to 'Medium'... and states, "Program must ask for internet access and server rights". You can find this setting by opening ZoneAlarm, click the 'Program control' on the left and make sure the top tab is set to 'main'. Then to the right uder 'program control', move the slider to 'meduim'. Then close Zonealarm and try to reconnect with your browser again.
When ever I update avast to a new ver. program, Zone Alarm will notice the new program and I'll see a pop up from ZAP telling me it wants access. Just click ok and 'remember' this setting.
Hope this helps.