Check on Firewall & traffic shaping page if It's allowed to clients access the local LAN.
When clients use Meraki's DHCP they are using NAT, so any internal service will be accessed through the IP of the AP the client is connected to.
But, It's not the best option. I suggest you use an external DHCP server assigned.
NAT mode with Meraki DHCP isolates clients. Devices with a Meraki DHCP address will be able to access external and internal resources, such as the Internet and LAN (if firewall rules permit). However, connected clients will be unable to contact each other. The client isolation features of Meraki DHCP can be seen in the above figure. Client A and Client B can both access the Internet. When Client A wants to send traffic to Client B, the traffic will reach the AP. However, the AP will not forward this traffic to Client B. Therefore, the two clients are isolated from each other.
Since the client isolation function of NAT mode prevents wireless devices on the SSID from communicating with other wireless devices, NAT mode is not recommended for use with wireless peer-to-peer devices like a wireless printer or Google Chromecast.
Due to the implementation of client isolation, clients on a NAT mode SSID cannot talk to clients on a bridge-mode SSID when both clients are connected to the same AP.
There are a few common problems that can arise when deploying NAT mode with Meraki DHCP to provide client addressing. These problems are outlined in detail below:
So the workaround is to use an external DHCP server assigned.
No see above regarding bonjour forwarding...
Yes it s possible to ppint to your devices in differing subnets with isolation on.or use chromcasts and apple tvs across differing subnets with isolation
Put he printer in one subnet, your clients in a differing subnet. printer can be wired or wireless and use bonjour forwarding MUST create reciprocal rules or it will not work....
I missed he was doing Meraki DHCP which for the life of me I can't understand why anyone would do this
Use bridge mode enable WIRELESS Client iso on the SSID and do what I said do, it will work flawlessly between subnets
NAT mode is not recommended for use with wireless peer-to-peer devices like a wireless printer or Google Chromecast.