Are you using the MR66's as a bridge pair? If so, they only support one VLAN I do believe,  please see below   https://documentation.meraki.com/MR/Deployment_Guides/Mesh_Deployment_Guide_(CVD)#Typical_Deployment_Models   Look at ethernet bridging section ... View more

Hi, Is your main concern having a SSID for each room or wireless client isolation? The Meraki switches support port isolation in Bridge mode. Not sure if that helps you......  You could also try a Z3 instead of a Z1 if you needed a POE out port for greater functionality.   https://documentation.meraki.com/MR/Firewall_and_Traffic_Shaping/Wireless_Client_Isolation         ... View more