Yes, indeed there is an issue with the latest firmware upgrade MX 14.50. My ShoreTel phone system devices stopped working (two Shoretel devices plugged in directly into the MX68 device) Also, some network devices that were using the same network switch (also plugged into the Meraki), had network connectivity issues . Printing server stopped working through the network, also the Esxi VMWare host was displaying "firewall changed " errors and the VM servers didn't communicate with the network devices. Rolling back to the previous firmware MX 14.40 fixed all the issues
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