Ignore flow logs and topology when diagnosing network reachability. It skips the need to validate recovery against the target objective before retiring the legacy process.

Use public endpoints for every service regardless of private connectivity needs. It weakens repeatable operations during a security architecture review and creates operational fragility.

Design VPCs, connectivity, routing, load balancing, DNS, firewall policy, observability, and security controls around availability and least privilege. For this case, also validate recovery against the target objective and address conflicting routing behavior before closure.

Open broad firewall rules while troubleshooting and leave them in place. It does not resolve conflicting routing behavior in the network modernization.