Address already in use (port 11434 / 8080)
Symptom
Server fails to start: bind: address already in use.
Likely causes
- Another instance (often the Ollama menu-bar app) already listens on that port
How to fix it
- Find the process using the port and stop it, or choose another port.
- On Linux with systemd,
systemctl status ollamamay show it's already running.
bash
lsof -i :11434
llama-server -m model.gguf --port 8081Still stuck? Check the lessons or measure first with the benchmark lab.