# Timeout The `timeout` error returns a [`504` error code](https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/504) and occurs when either: * Horizon has not received a confirmation from the Stellar Core server that the transaction you are trying to submit to the network was included in a ledger in a timely manner, or * Horizon has not sent a response to a reverse-proxy before a specified amount of time has elapsed. The former case may happen because there was no room for your transaction for 3 consecutive ledgers. This is because Stellar Core removes each submitted transaction from a queue. To solve this you can: * Keep resubmitting the same transaction (with the same sequence number) and wait until it finally is added to a new ledger, or * Increase the fee in order to prioritize the transaction. ```bash { "type": "https://expansion-testnet.bantu.network/horizon-errors/timeout", "title": "Timeout", "status": 504, "detail": "Your request timed out before completing. Please try your request again. If you are submitting a transaction make sure you are sending exactly the same transaction (with the same sequence number)." } ``` --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://developers.docs.bantufoundation.org/api/errors/http-status-codes/horizon-specific/timeout.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.