DiagnoseConnection

# DiagnoseConnection method

Not supported. Attempts to diagnose problems with the network connection.

## Syntax

```
HRESULT retVal = object.DiagnoseConnection();

```

## Parameters

This method has no parameters.

## Remarks

DiagnoseConnection was introduced in Windows Internet Explorer 7.

To successfully complete this operation, the Network Diagnostic for Windows XP extension must be installed. On Windows Vista, the Network Diagnostics Framework is used.

This method can only be called from the "res://ieframe.dll/dnserror.htm" resource page.

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