We just implemented a vMX100 on AWS and are receiving a Bad Internet connection message in the dashboard. SiteToSite vpn is functioning. The appliance is not able to connect to the vpn registries on UDP port 9350 according to the dashboard.
Are you getting the Bad IP Assignment message or the issues with VPN registry connections? We were able to resolve the Bad IP Assignment by going to the Appliance Status --> Uplink and changing the WAN configuration to be static instead of DHCP and adding the internal VPC address as a static entry and not dynamic.
The VPN registry self healed and wasn't causing any network outages.