For anyone dealing with this issue, Meraki and Umbrella were unable to provide a complete solution, due to the heavy integration with Facebook.  Umbrella and Meraki can block the web version, but the mobile app continued to work.  I had to use a layer 3 firewall rule to block the Facebook IP ranges associated with Whatsapp.  You can find them here: https://developers.facebook.com/docs/whatsapp/guides/network-requirements/ under the IP addresses section.  It was a complete pain to create 230 objects and 2 object groups (remember object groups only be 150 objects max) but I have successfully blocked whatsapp completely.  I know that the ip addresses may change in the future, but that is something I will just have to deal with when it comes along.   ... View more

no, is a MX450 ... View more

If you separate the APs between two different networks you could have one network with the SSID hidden and the other network set to broadcast the name.  As HodyCrouch mentioned, there is always the SSID availability feature that can simply remove the AP from broadcasting on certain access points.  This method is far superior in my opinion as it simplifies managing once you tag the APs, and doesn't require too much effort.  Also, I would recommend against hiding your SSID broadcast if that was your intention, it causes more problems than it's worth and is not an effective security measure. ... View more

Not officially supported.  ... View more

It is saying that DNS queries were failing.  What DNS servers are you using? ... View more