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Developer investigates 25-second network delay in HTTP MCP client connectivity checks

By PulseAugur Editorial · [1 sources] ·

A developer is investigating a peculiar network issue where some HTTP MCP clients perform a quick connectivity check, establish TCP/TLS connections in under a second, and then inexplicably pause for approximately 25 seconds before proceeding. This delay, observed when no application data is sent during the interval, suggests a client-side logic problem such as a fixed timer or a probe that fails to transmit. The developer suggests methods for isolating this issue without server access, including measuring the time between the connectivity log and the first application byte, and checking for specific HTTP/2 transmissions during the stall. AI

RANK_REASON The item is a technical blog post discussing a specific network debugging problem, not a release or significant industry event.

Read on dev.to — MCP tag →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Developer investigates 25-second network delay in HTTP MCP client connectivity checks

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1 / 100
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Commentary
The item is a technical blog post discussing a specific network debugging problem, not a release or significant industry event.
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Single-source cluster
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infra, other
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Low
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COVERAGE [1]

  1. dev.to — MCP tag TIER_1 English(EN) · infracore ·

    Hunting Down a 25-Second Network Ghost

    <p>Some HTTP MCP clients log a basic connectivity pre-check, finish TCP/TLS in well under a second, then sit idle for a tight ~25s band before logging success and sending the real request.</p> <p>When a capture shows the handshake fully ACKed and zero application bytes until the …

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