CHR on Amazon - two interfaces

Hi - first post.

I have been struggling with the cloud hosted router on Amazon, so thought I would ask for some help. I hope someone has some experience with this?

I am losing access to the router for various reasons, and want to configure a second interface for a back door.

I have read that I need to configure the primary interface as static, I tried various approaches, but lose connection.

I configured the second interface with it’s own EIP, and on it’s own subnet and the proper security rules. It is receiving data, but it doesn’t connect via ssh, or winbox. I can also ping outwards on that interface but no response back.

Please help if you are familiar with this. Thanks Frieda