How to: Check Connection Status in Visual Basic
The IsAvailable property can be used to determine whether the computer has a working network or Internet connection.
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To check whether a computer has a working connection
Determine whether the IsAvailable property is True or False. The following code checks the property's status and reports it:
If My.Computer.Network.IsAvailable Then MsgBox("Computer is connected.") Else MsgBox("Computer is not connected.") End If
This code example is also available as an IntelliSense code snippet. In the code snippet picker, it is located in Connectivity and Networking. For more information, see Code Snippets.