After ~ 3 hours on the phone with Meraki and sharing the information provided by @IDV , @Raphael, @dgander , @dade80vr  & @dade80vr we have a "bandage" to resolve this until an update to fix it is released.  I was informed that Meraki is aware of the issue and is working on a solution.  No ETA as to when the actual fix will be known.  Meraki also stated that this is only affecting MX84's.  I suspect it may affect other models as well that the setting listed below is available on.   Solution:  Disable Web Cache and reboot router. Security & SD-WAN -> SD-WAN & Traffic Shaping   Unfortunately a reboot is required for the change to take effect.   I hope this helps anyone currently having the issue.     ... View more