Recall common TCP evidence patterns and what each suggests during network triage.
Handshake What does repeated SYN with no SYN-ACK usually suggest? The client is not receiving a server response. Next checks: server-side capture, firewall path, routing, return path, and whether the destination IP is correct. Common trap The client sends SYNs, so the server must be down. You have only a client-side packet capture. Your line The client capture proves request attempts, not server state. We need a server-side or midpoint capture to locate where the SYN disappears. Naming the server as root cause from one side of the path. It separates observed fact from inference and defines the next evidence…
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