Yes the 350 is the RSTP root. Firmware is 10.45. Caveat to the laptop working..i think its arp cache is what allow it to work.. If i try to do a release/renew while plugged into stk1 it can't find dhcp etc...but if using its cached address it can.., if I plug it into either of the other two stacks it works fine, release/renew works as intended. Doing packet trace with meraki support they gave me this: Dell workstation connected to sw3/stk1 / port 48 is sending ARP requests for its gateway, i.e. 10.209.152.254, but it is not receiving any ARP replies. We see these ARP requests going out of sw1/stk1 / port 1. Furthermore, it looks like there may be some asymmetric routing going on upstream of sw1/stk1 / port 2, as: - Outbound traffic, i.e. from laptop to Internet, is using an HSRP MAC address as the destination MAC - Inbound traffic, i.e. from Internet to laptop, is using a Fortinet (90:6c:ac:3e:ec:d6) source MAC address
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