I ran into an interesting problem when I upgraded my home network to a Meraki firewall, switches and APs. For anyone who has a Cisco Meraki home network with a Meraki MX security appliance, the wireless clients will default to a cloud based Meraki owned 10.x.x.x/8 DHCP subnet to insure that there is no connection between wireless clients. This is an added safeguard in a commercial environment. Although the wireless 10.x.x.x/8 subnet communicates with the home LAN based 192.168.x.x/24 subnet there is some firewalling. In my case, I could change the frequency of the Flex 6500 and see the display but couldn't see the waterfall or hear sound. The fix was to select "All clients on LAN DHCP " vs. wireless clients using Meraki DHCP. This puts all clients on the same subnet and now my iPad works as a remote control for the Flex 6500 just fine.