# IBKR API error: TimeoutError() in ib_async after login Independent and unofficial. Not affiliated with or endorsed by any broker or platform named here. Educational only: nothing here is advice, and nothing here recommends a broker or a trade. This is the markdown version of https://openbrokerapi.com/errors/ibkr/timeout-error, written from the same records as that page. 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. 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. - Last reviewed: 2026-09-21 Unverified in part: 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 - [Every Interactive Brokers endpoint](https://openbrokerapi.com/brokers/ibkr/endpoints) No single endpoint is named for this error on this site. - [Interactive Brokers quickstart](https://openbrokerapi.com/brokers/ibkr/quickstart) ## 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](https://github.com/ib-api-reloaded/ib_async/issues/143). No reply visible on the page as fetched. Read on 21 Sep 2026. Same symptom, second report, 12 Aug 2025: [github.com](https://github.com/ib-api-reloaded/ib_async/issues/169). 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 - The first report, on 25 Apr 2025, quotes TimeoutError() after the gateway closes the connection immediately after login. - A second report on 12 Aug 2025 describes the same symptom, a connection that drops immediately after a successful API connection, reproduced across multiple machines, different ports and client IDs. It does not quote the string. - Neither issue had a reply visible on the page when it was read on 21 Sep 2026. ## What we do not know - The cause, and whether it lies in ib_async, in IB Gateway or in the account. - Whether the two reports share one cause. They share a symptom. ## 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. ## Where to go next - [Interactive Brokers API facts, limits and sources](https://openbrokerapi.com/brokers/ibkr)The broker page - [Interactive Brokers Web API endpoint explorer](https://openbrokerapi.com/brokers/ibkr/endpoints)Endpoints - [Interactive Brokers API error codes](https://openbrokerapi.com/errors/ibkr)Every Interactive Brokers error we decoded - Broker API questions nobody answersThis thread and the eleven others, with outcomes - [Broker API error codes: meaning and fix](https://openbrokerapi.com/errors)The whole dictionary - [Corrections and right of reply](https://openbrokerapi.com/corrections)Solved it, or read the thread differently? ## More on the Interactive Brokers API - [Interactive Brokers API quickstart](https://openbrokerapi.com/brokers/ibkr/quickstart): From credentials to a first call on a demo account, step by step. - [Interactive Brokers API error codes](https://openbrokerapi.com/errors/ibkr): 511 decoded, each with what it means, and the fix where the source gives one. - [Interactive Brokers API endpoints](https://openbrokerapi.com/brokers/ibkr/endpoints): 23 documented, each with its method, path, parameters and source. - [Interactive Brokers API page](https://openbrokerapi.com/brokers/ibkr): The full record: access, authentication, limits and the source for each. - [Get your Interactive Brokers trade history into a spreadsheet](https://openbrokerapi.com/guides/ibkr-trade-history): Guide - [IBKR API without TWS: headless IB Gateway options](https://openbrokerapi.com/guides/ibkr-headless-gateway): Guide - [The three Interactive Brokers REST front doors compared](https://openbrokerapi.com/guides/ibkr-rest-front-doors): Guide - [Interactive Brokers MCP servers, compared](https://openbrokerapi.com/guides/interactive-brokers-mcp-servers): Guide ## Licence and how to cite The records behind this page are all rights reserved. This file is the page itself, at its own address, in another format. It is not part of the CC BY 4.0 downloads listed at https://openbrokerapi.com/data. Quote from it with a link to the page. Cite as: IBKR API error: TimeoutError() in ib_async after login. Broker API Hub, https://openbrokerapi.com/errors/ibkr/timeout-error, newest check 2026-09-21. Where you rely on a single figure, cite the source and the checked date printed beside it as well. Where this page and a broker's own documentation differ, the documentation wins.