Unfortunately, I don't have a great answer for you: this is expected behaviour.   MX will not inherit wireless configuration from the configuration set up under "wireless". It will be a completely separate wireless network.   The MX with wireless is meant as one box solution for very small deployments, where no APs are used. Deployment where you are using both the wireless from the MX and wireless from the APs is not a supported deployment.   You can do it of course, but you will be running two separate wireless networks with no option for client roaming.   You can find info on how to configure the MX wireless here: https://documentation.meraki.com/MX/Wireless/MX_and_Z-Series_Wireless_Settings ... View more

The first thing that comes to mind is Walled Garden.   You can defined IP ranges and websites which are accessible to user without them going through to the Splash Page. Here is the info: https://documentation.meraki.com/zGeneral_Administration/Cross-Platform_Content/Walled_Garden   You could then list all the common email provider webpages there. The users should then be able to access their email through a web-browser. Not sure if Walled Garden would work for accessing email through apps.   ... View more

AutoVPN uses a Registry hosted in the cloud in order to provision VPNs. A Registry holds the record of all the MXs in an organisation and other information needed in order to automatically push the required configurations when new VPN tunnels are created.   VPN Registries have HA configuration and usually the security appliance is able to connect to more than one instance of the VPN registry at the time. My understanding is that the warning may indicate that the Security Appliance is having trouble connecting to one of the registries.   This will not affect your already provisioned VPNs, nor it will normally affect the configuration of new VPN tunnels.   If you do experience the issue with new VPN tunnels provisioning contact support and they should be able to help. ... View more

Another good resource is the Cisco Live content library.   This session from Meraki Live Melbourne 2018 could be of interest: https://ciscolive.cisco.com/on-demand-library/?search=sd-wan%20meraki#/session/BRKCRS-2142   You need to create an account to access it, but that is free. Good luck with learning! ... View more