AGENTOS DOCS / REFERENCE
Troubleshooting
Most problems can be found in the server log. Start there, then look for your symptom below.
First steps
agentos server status # is the server running?
agentos server logs # watch the live log
agentos server restart # restart and reload config
Server & web UI
The server won't start
- Check
agentos server logsor~/.agentos/server.log. - Make sure nothing else is using port 3456, or change the port in
~/.agentos/server.json.
The web UI asks for activation again
- Your certificate may have expired, been revoked, or gone unverified for more than 30 days. Restore network access to Symbient AI, or enter a new token.
Models
No models appear
- Confirm Ollama is running:
ollama list - Check the host URL in Workspace Settings or
MODEL.md. - Pull a model if you don't have one:
ollama pull qwen3 - For OpenAI-compatible providers, check the base URL (it usually ends in
/v1) and the API key.
Replies are slow, cut off, or ignore tools
- Try a larger or tool-capable model, and check that the context size in
MODEL.mdmatches the model. - If the context fills up quickly, run
/compact. AgentOS also compacts automatically at 80%.
Jobs & schedules
- Jobs never run: in supervised mode they wait for approval. Check the Jobs page, or switch to
/mode 2. - A job was marked failed after 15 minutes: it reached the job timeout. Raise
jobTimeoutMinutesif the work really takes longer. - Scheduled tasks didn't fire: the server must be running at that time. Turn on Auto-start, and check the heartbeat interval.
Network
- The agent can't reach the internet: if you're behind a corporate proxy, set it in Global Settings → Proxy.
- The phone can't connect: both devices must be on the same network. Allow AgentOS through the firewall on private networks, and pair again if the computer's IP address changed.
Browser & desktop control
- Debug mode can't connect: make sure the browser was started with
--remote-debugging-port=9222, the port matches Global Settings, and no firewall is blocking it. - The extension isn't connecting: the URL must be
ws://localhost:<port>/__cdp_bridge__, and the server must be running. Look forCDP Bridge: Chrome extension connectedin the log. - Playwright says "No usable browser found": install Google Chrome or Microsoft Edge.
- Input or accessibility control does nothing: some apps running as Administrator block automation. Run AgentOS at the same privilege level as the target app. On macOS, grant Accessibility permission.
Contacting support
In Global Settings → Server Logs, click the button to email diagnostics. This sends a report with your configuration summary (secrets are not included) and recent errors to Lucus Labs support. You can also reach us through the contact form. Please include your AgentOS version and what you were doing when the problem happened.