[Mike0001]

I have been having a lot of lost connections and traced them to ZA. It had to go!

Neither iTunes nor AVG would update whilst it was running, nor could I access any web sites, but ping and DNS were ok!

[evilfantasy]

Microsoft update KB951978 & Zone Alarm (kills internet connection)

From ZA website.

Workaround to Sudden Loss of Internet Access Problem

Recommended Actions -
Download and install the latest versions which solve the loss of internet access problem here (English only):
ZoneAlarm Internet Security Suite
ZoneAlarm Pro
ZoneAlarm Antivirus
ZoneAlarm Anti-Spyware
ZoneAlarm Basic Firewall

- or follow the directions below.

Option 1: Move Internet Zone slider to Medium

1. Navigate to the "ZoneAlarm Firewall" panel
2. Click on the "Firewall" tab
3. Move the "Internet Zone" slider to medium

Option 2: Uninstall the hotfix

1. Click the "Start Menu"
2. Click "Control Panel", or click "Settings" then "Control Panel"
3. Click on "Add or Remove Programs"
4. On the top of the add/remove programs dialog box, you should see a checkbox that says "show updates". Select this checkbox
5. Scroll down until you see "Security update for Windows (KB951748)"
6. Click "Remove" to uninstall the hotfix

[Mike0001]

Thanks, evilfantasy, all up and running again. Funnily enough it never indicated to me there was an update.