I'd either start with a wireshark capture on the host and/or a pcap specific to the host IP on the MX, have you done any packet captures? ... View more

1. Is the mode set to Prevention or Detection? 2. Is the ruleset set to Connectivity Balanced or Security?   Have you tested throughput among the various ruleset settings? ... View more

Sounds like it could be a DNS issue?  Are both SSIDs using the same DNS server?  Can you resolve the URL in question while on the Guest_SSID? ... View more

I have seen many instances where I have confirmed no external power cord to a phone and the dashboard just wont register PoE usage.. SNMP would be great to get around instances where the switch/dashboard seem incorrect/inaccurate.     ... View more

How exactly would increasing the default value of 64 to say 1024 on the ASA side have any affect?  Seems the Meraki has the lower value and as such is not able to 'queue'/pass traffic once it sees the first 'bad' sequence number.  Shouldn't the value need to be changed on the Meraki end only?   Please advise.  ... View more