Different VPN software on the client, like Sonicwall or something your previously used? Also AV or Endpoint security software could be causing the issue? virtual adapters could cause issues and should be removed. ... View more

Try making the source encryption domain on the Amazon side 10.0.0.0/22.  That includes both your local LAN and your VPN sunet. It still might not work.   I find the Amazon VPN gateway too inflexible.  I tend to use Strongswan on Ubuntu for all VPNs - Meraki, ASA and IOS routers.  I can also do more complex configurations, like source and destination NATing prior to VPN. Plus its cheaper. ... View more

Hi Philip,   Thanks for the reply. That's correct. Simple switches, single subnet, Meraki MX64 is the gateway. It's running version 15.16 right now. I've tried it with the stable firmware, release candidate firmware, and now the beta firmware. No changes. Eric ... View more