> ## Documentation Index
> Fetch the complete documentation index at: https://docs.kraken.com/llms.txt
> Use this file to discover all available pages before exploring further.
# Cancel on Disconnect
> Dead Man's Switch mechanism to cancel all orders after a timeout
WSS
ws-auth.kraken.com/v2
cancel\_all\_orders\_after
`cancel_all_orders_after` provides a "Dead Man's Switch" mechanism to protect from network malfunction, extreme latency or unexpected matching engine downtime.
* The client sends request with a timeout (in seconds), that will start a countdown timer in the trading engine which will cancel all client orders when the timer expires.
* The client must keep sending new requests to reset the trigger time, or deactivate the mechanism by specifying a timeout of 0.
* If the timer expires, all orders in the account are cancelled and the feature is disabled until the next `cancel_all_orders_after` request.
* The recommended use is to make a call every 15 to 30 seconds, providing a timeout of 60 seconds. This allows the client to keep the orders in place in case of a brief disconnection or transient delay, while keeping them safe in case of a network breakdown.
It is recommended to disable the timer ahead of scheduled trading engine maintenance (if the timer is enabled, all orders will be cancelled when the trading engine comes back from downtime).
Value: `cancel_all_orders_after`
Duration (in seconds) to set/extend the timer, it should be less than `86400` seconds.
Authentication token. See [authentication guide](/exchange/guides/websockets/authentication) for details.
Optional client originated request identifier sent as acknowledgment in the response.
Value: `cancel_all_orders_after`
Condition: if `success` is `true`
Format: RFC3339
Example: `2022-12-25T09:30:59.123456Z`
The current engine time.
Format: RFC3339
Example: `2022-12-25T09:30:59.123456Z`
The time the orders will be expired in the engine.
Error message. Condition: if `success` is `false`.
Indicates if the request was successfully processed by the engine. One of: `true`, `false`
Optional client originated request identifier sent as acknowledgment in the response.
The timestamp when the request was received on the wire, just prior to parsing data. Format: RFC3339. Example: `2022-12-25T09:30:59.123456Z`
The timestamp when the response was sent on the wire, just prior to transmitting data. Format: RFC3339. Example: `2022-12-25T09:30:59.123456Z`
```json Request theme={null}
{
"method": "cancel_all_orders_after",
"params": {
"timeout": 100,
"token": "zwpdzWUe18Bn6h4TAMorh26+QbcMeST2B5tamfe+pgQ"
},
"req_id": 1234567890
}
```
```json Response theme={null}
{
"method": "cancel_all_orders_after",
"req_id": 1234567890,
"result": {
"currentTime": "2023-09-21T15:49:29Z",
"triggerTime": "2023-09-21T15:51:09Z"
},
"success": true,
"time_in": "2023-09-21T15:49:28.627900Z",
"time_out": "2023-09-21T15:49:28.649057Z"
}
```