AWS Deployments Often Fail Due to Misconfigured Access Policies and Routing

May 1, 2026 · Editor · 1 min read

Original source: GigamonTV

This video from GigamonTV covered a lot of ground. 1 segment stood out as worth your time. Everything below links directly to the timestamp in the original video.

Understanding these common misconfigurations can save countless hours of troubleshooting and prevent security vulnerabilities in your cloud infrastructure. This insight is crucial for anyone managing network security and access in AWS.

AWS Deployments Often Fail Due to Misconfigured Access Policies and Routing

Ron Howard, an expert in cloud deployments, highlights that incorrectly configured identity access management (IAM) policies and improper traffic routing are the leading causes of deployment failures in cloud environments. These issues often stem from insufficient port and protocol openings, or conflicts where deny rules in network access control lists (NACLs) or security groups inadvertently supersede allow rules, blocking essential communications.

Howard emphasizes the critical distinction between stateful security groups and stateless NACLs. Security groups, being stateful, automatically permit return traffic once an initial connection is established, simplifying configuration. Conversely, stateless NACLs demand explicit rules for both inbound and outbound traffic, requiring precise definitions for all communications and adhering to a strict order of operations, which can easily lead to oversight and connectivity problems.

"The two biggest fail points that we experience are the identity access management policy not properly configured to allow the proper permissions... and then also the routing of the traffic from the source to the destination and then back again."

▶ Watch this segment — 19:52