XS724EM/M4200-10MG-POE+ & MS510TXPP - Can't Force 1GB on MGig Ports for incompatible MR53E MGig AP

Again for the records: There is nothing that stops the switch vendors from implementing a switch port from limiting the announced speed capabilities. Still, there must be autonegotiation handshake taking place - this is IEEE 802.3 mandatory for Gb and up. The IEEE person won't change this for Meraki. Configuring a MultiGig port to GbE (or only 2.5G or only 5G or only 10 G for the sake of it) is not similar to setting a MultiGig or Gb port to a fixed 100 or 10 Mb rate.

As the messenger here I understand you look for a solution - however it should be up to Meraki to properly work with standards compliant MultiGig ports on their AP product in question. Netgear does look into changing the specs and updating the switch firmware - but I doubt there is a high priority. That's the problem with vendors like Meraki (ref. MultiGig negotiation) or Ubiquity (ref. non-standard PoE, another pain) coming from a "closed" world.