Interactive Brokers TWS API message code
Interactive Brokers API error 504: not connected
The error, as text you can copy
504- Kind
- TWS API message code
- Where you meet it
- In the TWS API, not in the Web API and not in an HTTP status
What does 504 (not connected) mean on the Interactive Brokers API?
Not connected. A request was sent before connecting or after the connection broke.
Risk warning: CFDs and spread bets are complex instruments and come with a high risk of losing money rapidly due to leverage. You can lose money on these products, and each provider publishes its own loss figure under FCA rules. You should consider whether you understand how they work and whether you can afford to take the high risk of losing your money. Automated and API trading can amplify losses through bugs, connectivity failures and runaway orders.
Independent and unofficialinteractivebrokers.github.iochecked
How do I fix 504 (not connected)?
Connect first and wait for nextValidId before sending requests; reconnect if dropped.