I would suggest to use api.meraki.com and not dashboard.meraki.com
dashboard.meraki.com remains in a datacenter in new york (according to geoip lookup).
api.meraki.com is more balanced around the world.
Also there is a redirect in place here.
dashboard.meraki.com -> redirects to api.meraki.com -> redirects to nXXX.meraki.com (where xxx is the shard/server on which your devices will register)