Thanks for the reply - I believe that it is a network related issue as although DNS is resolving the pings are failing - thereforeI was wondering if other people had used an AWS connection with Altavault before (i.e. this is probably not an Altavault related issue directly - unless there is some peculiarity about how it needs to be configured to work with a direct connection or some routing oddities)
Also should mention the AVA is running the latest code.
I might be wrong here, but as far as I understand, DirectConnect is tied to a VPC and S3 resides outside a specific VPC.
When you will direct data from DirectConnect to S3 it will use the VPC outbound internet (if exists) to get to S3, and if you don't have an outbound internet or wish to use the more secure way of PrivateEndPoint you will need to create the route for that using a proxy in the VPC.