So let me see if I get this right.. The Switches are stacked. They have a 100G link between them on the Stack cables, but somehow this translate to, I need a 1g link on the front in order to get to the dashboard? How STUPID is meraki, that it can't use the stack link as.... a STACK LINK!?!?!? We have been dealing with this same stupidity since we started using these switches. Just an FYI, it is because these idiot stack link ports are being shut down by Spanning-tree. This is an issue on previous stackable switches as well (WHY?) but at least on those, you could turn Spanning-tree OFF.. This, evidently was not generating enough support tickets for Meraki support so they decided in their Infinite wisdom to remove access to be able to turn spanning tree off on the stack ports.. so yeah, If you use these switches in a stack, and lose power to them, you will 99% of the time break your stack up until you go in and physically connect an uplink port between the switches.
C'mon Meraki.. Get your crap together. When switches are stacked, they are stacked. They should only be one switch. The Stack ports should not be treated like regular ports, they should be backplane links. Above all else they should NOT be able to be shut down by something as dumb as Spanning-tree.