Do you have the MR connected to the dashboard yet or is that what you're trying to achieve?
If it's already in the dashboard, you can simply spin up an said, connect a client to it and send traffic.
If you're trying to get it connected to the dashboard, you can access the local status page (where you set the static IP) and check the connection status.
Under Access Point Details, you can see information about whether the MR can connect to the local network, the internet and the Meraki cloud.
If it has passed the initial local network, it will be sending ICMP and TCP packets to 8.8.8.8 and the Meraki Cloud. You should be able to see those on the perimeter firewall.