# Sandbox.Network.GameNetworkSystem.OnBecameHost

```csharp
void OnBecameHost(Connection previousHost)
```

Legacy host-change callback. Override BecomeHostAsync to apply the handoff snapshot.
The default BecomeHostAsync implementation calls this for existing subclasses.

### Parameters

- `previousHost` (`Connection`)

Declared in [Sandbox.Network.GameNetworkSystem](/api/Sandbox.Network.GameNetworkSystem).
Assembly: `Sandbox.Engine`.