Amazon VPC Troubleshooting Services (L3/L4 support)

When your Amazon VPC breaks, your business stops.

Latency spikes, intermittent 5xx errors, or “it works in one subnet but not another” can stall releases, burn engineering hours, and frustrate customers. Most teams don’t need full-time network PhDs—they need someone who can jump in right now, find the root cause, and leave their environment stronger than before.

That’s exactly what h-Bar Solutions delivers with our Amazon VPC Troubleshooting Services (L3/L4 support).

“We can’t quickly find the real root cause.”

VPC issues rarely live in just one place. A misaligned route table, overlapping CIDRs, asymmetric routing through a Transit Gateway, or a subtle Security Group rule can all combine into one painful, intermittent problem.

• We perform end-to-end network path analysis (subnet → route table → NACL → SG → TGW/VPN/Direct Connect → endpoint).
• We use structured runbooks and proven diagnostics (VPC Reachability Analyzer, flow logs, NLB/ALB logging, CloudWatch) to narrow down and prove root cause—not guess.

“We’re worried an external partner will break more than they fix.”

Giving outsiders access to your VPC can feel risky.

• We follow least-privilege access, change-management best practices, and provide a clear rollback plan for every change.
• Every recommendation is documented, justified, and reviewed with your team before execution.
• You own every decision. Our role is to make those decisions obvious and low-risk.

“We don’t just want a fix; we want to stop this from happening again.”

A quick patch is not enough for serious workloads.

• We provide post-incident reviews with diagrams, timelines, and “why it happened” analysis.
• We deliver hardening recommendations: better subnet layouts, route-table strategy, security group patterns, and logging/monitoring baselines.
• We coach your engineers so next time, they can diagnose issues faster—often without external help.

Deep-Dive VPC Assessment (Discovery)

• Inventory of VPCs, subnets, CIDR blocks, IGWs, NAT gateways, TGWs, VPNs, Direct Connect, and endpoints
• Review of routing tables, NACLs, Security Groups, and peering/transit architectures
• Identification of obvious anti-patterns and high-risk configurations

Hands-On Troubleshooting Engagement

• Targeted analysis of your specific symptoms (connectivity failures, DNS issues, cross-account access, hybrid connectivity, intermittent timeouts, etc.)
• Packet-flow reasoning across layers 3–4: routing, ACLs, SGs, load balancers, and connection tracking
• Use of AWS-native tools (Reachability Analyzer, VPC Flow Logs, CloudWatch metrics, ELB access logs) plus proven network troubleshooting techniques

Root Cause, Not Just Remediation

• Clear, written root cause analysis (RCA) with evidence
• Prioritized remediation options (from low-risk config tweaks to structural changes)
• Optional hands-on change implementation under your change control process

Knowledge Transfer & Hardening

• Live walk-throughs with your team of what went wrong and how it was fixed
• Playbooks and diagrams that document the “known good” architecture
• Recommendations for guardrails: AWS Config rules, baselines, tagging, and monitoring to catch issues earlier

• Teams running production workloads on AWS that cannot tolerate unexplained failures
• SaaS providers needing highly available, secure multi-AZ VPC designs
• Enterprises with hybrid connectivity (VPN/Direct Connect/TGW) seeing intermittent or regional issues
• Organizations preparing for audits or security reviews that demand clear network behavior and documentation

• Senior L3/L4 cloud networking expertise – You work with engineers who live and breathe VPC, routing, and connectivity at scale.
• Clear communication – No mystery jargon. We explain problems in plain business language, backed by technical depth for your experts.
• Outcome-focused approach – Our goal is not billable hours; it’s a stable, observable network that supports your roadmap.
• Repeatable process – You’re not buying “hours”; you’re buying a proven troubleshooting system and the confidence that comes with it.

Engage h-Bar Solutions through the AWS Marketplace listing for Amazon VPC Troubleshooting Services (L3/L4 support). Once subscribed, we quickly align on scope, access, and priority issues, then start reducing blast radius and restoring clarity to your network.

When your VPC is the nervous system of your business, you can’t afford uncertainty. Let our team make your network predictable, observable, and boring in the best possible way.