This is the code i've been using for months with zero issues. It returns the
first IP4 address, which always seems to be the correct address.
public static IPAddress GetIPAddress()
{
IPAddress[] availableAddresses =
Dns.GetHostAddresses(Dns.GetHostName() + ".local");
IPAddress activeAddress = null;
foreach (IPAddress ip in availableAddresses)
{
if (ip.AddressFamily == AddressFamily.InterNetwork)
{
activeAddress = ip;
break;
}
}
return activeAddress;
}
public static IPAddress GetIPAddress(string hostName)
{
IPAddress[] availableAddresses = Dns.GetHostAddresses(hostName);
IPAddress activeAddress = null;
foreach (IPAddress ip in availableAddresses)
{
if (ip.AddressFamily == AddressFamily.InterNetwork)
{
activeAddress = ip;
break;
}
}
return activeAddress;
}
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