Ok so I have tried blocking all the dns names on git hub to no avail. I have also tried using the packet capture to work out the ip addresses one by on, then block them. Sadly it appears there are simply to many as each time I block one it moves to another ip. Looks like this one is more tricky than it sounds. If anyone from Meraki are reading this I would be grateful if WhatsApp could be added to the category. It appears other appliances such as Sophos already do this. Thanks, Rob ... View more