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IBKR API error: TimeoutError() in ib_async after login

IB Gateway closing the connection straight after login, surfacing in the ib_async library as TimeoutError(). Two independent reports four months apart, neither answered, so no verified fix exists.

Independent and unofficialLast reviewed

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Carried over from an earlier version of this site. The links below are the sources it was written from, but its statements have not been re-read at source since the date shown, so check anything you rely on.

What to try

Nothing verified exists yet. The thread does not establish a fix and we have not produced one, so this page offers none rather than a guess. If you have solved it, the corrections page is where to tell us, with a link we can check.

Next steps for this error

The error, exactly as it was posted

TimeoutError()

Does anyone encounter this before? The gateway closes the connection immediately after login, with TimeoutError().

Posted 25 Apr 2025: github.com. No reply visible on the page as fetched. Read on 21 Sep 2026.

Same symptom, second report, 12 Aug 2025: github.com. Open and unanswered. Read on 21 Sep 2026.

Possible issue on ib_async for connection to IBGateway, that drops immediately after successful API connection, reproduced across multiple machines, different ports, and client IDs.

Status: Unanswered

This is a reading of the public thread on 21 Sep 2026, recorded on the page that lists every thread of this kind. A thread can gain a reply after we read it, so check the link rather than trust us.

What we know

What we do not know

Questions about this error

What does "TimeoutError()" mean on the Interactive Brokers API?

IB Gateway closing the connection straight after login, surfacing in the ib_async library as TimeoutError(). Two independent reports four months apart, neither answered, so no verified fix exists.

Has anyone answered it?

Unanswered. No reply visible on the page as fetched. The thread was posted on 25 Apr 2025 and read on 21 Sep 2026. No reply visible on the page as fetched.

Is there a verified fix?

No. Nothing verified exists yet. This page records what the public thread establishes and what it does not, and will be updated if a fix is published or confirmed.

Independence

This page is independent and unofficial. Broker API Hub is not affiliated with, endorsed by or acting for Interactive Brokers or any other vendor, carries no broker branding and never asks you for an API key, a password or any other credential. The quoted text is a public post, reproduced so the next person with the same message can find it.

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