Redis Cluster Connection Issue Resolution

I'm facing issues in connecting my server application with an AWS Redis Cluster. My application was smoothly interacting with the cluster initially, but it is abruptly disconnected now.

- Problem: The main issue is connection instability and I need a professional to efficiently troubleshoot and resolve this problem.
- Experience: Ideally, you will have substantial experience with AWS Elasticache, specifically the Redis Cluster, and have dealt with connection problems before.
- Role: You will need to analyze the nature of the connection issues, identify what's causing them and implement a robust solution.

Experience in dealing with server applications would be a bonus. I look forward to your insights and expertise in solving this problem.