Unfortunately, I can't reverse back, it is past over 14 days since the upgrade occurred. I also opened a support ticket with Meraki support and I will post here the resolution, if there is one.  ... View more

Yes, I know it doesn't, you're right ... the issues occurred on the MX64 and MX68  ... View more

I created a new case explaining my issues and their answer was: "We are aware of this issue and our development team is actively working on it. The bugs states that MX68s running MX14.50 firmware don't forward traffic between switch boards. " ... View more

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 ... View more