Recently, I registered a domain with Amazon Route 53, which I successfully pointed to my EC2 Instance. It was working well for a while, then suddenly reverted to a Parked Domain page, looking like so;
The EC2 instance is still running, and I can access it successfully using its public IP address, which does indeed match my A Record in my Hosted Zones of Route 53.
Is there somewhere else that the proper name servers or DNS must be updated?