2 posts tagged with "WSL"

Sending a message to Claude Code in the VS Code extension panel does nothing for minutes, and finally fails with API Error: 500 [1234] — while the claude CLI on the same machine, same account, works perfectly at the same moment. This post walks through the full diagnosis and the fix.

TL;DR​

Two common networking pitfalls with WSL2 + Docker Desktop:

1. Silently occupied port: When a Docker container maps 5432, SSH tunnel localhost:5432 connects to the container's PostgreSQL instead of the remote server — the password is correct, but you're hitting the wrong instance
2. Host mode localhost unreachable: network_mode: host shares the Docker utility VM's network, not WSL2's — curl localhost:8080 fails