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# nw_connection_cancel_current_endpoint(_:)

Causes the current endpoint to be rejected, allowing the connection to try another resolved address.

```
func nw_connection_cancel_current_endpoint(_ connection: nw_connection_t)
```

## Discussion

Protocols that do not have handshakes, such as UDP, do not allow connections to validate connectivity on their own. Cancelling an endpoint allows you to indicate that a certain endpoint should be rejected due to a lack of valid response. If other addresses were resolved for the remote endpoint, those will be attempted next.

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