Fix Port 3080 Already in Use for DeepSeek Harness

Start with this command

This is the narrow command relevant to this page. Read the checks below before changing flags, credentials or profile patches.

dsh web --port 3081

What is verified now

The Web profile defaults to port 3080 and accepts --port as an app argument. Confirm which process owns the port, stop only a process you recognize or select another unused port; never use a broad kill command copied from an unknown page.

Evidence basis: Official --port behavior + locally test before publish. The status was checked on 14 August 2026; re-check the linked source after any dsh release.

Safe workflow

Use the smallest reversible workflow first. Do not add community plugins or paste credentials while validating the base behavior.

1. Copy the exact error and record OS, Node and dsh versions.
2. Apply the narrow checks on this page in order.
3. Verify with a minimal profile and escalate with sanitized logs if it persists.

Verify before moving on

A successful result should be observable: a version string, reachable local URL, valid provider response, loaded configuration, or disappearance of the exact error. If the result differs, stop and capture sanitized evidence rather than stacking unrelated fixes.

1. Record the exact dsh, Node or Python version.
2. State the operating system and installation method.
3. Link the first-party source and include only sanitized logs.

First-party sources

Open the pinned or retrieved source before acting on a changed release candidate.

• Official dsh CLI behavior referenceOfficial documentation · retrieved 2026-08-19↗

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