Powershell-Code to force a reconnect on an AVM Fritz.Box

gistfile1.txt

# reset Internet-Connection on fritz.box to get new IP:

cls
Add-Type -AssemblyName System.Net.Http
$handler = [System.Net.Http.HttpClientHandler]::new()
$ignoreCerts = [System.Net.Http.HttpClientHandler]::DangerousAcceptAnyServerCertificateValidator
$handler.ServerCertificateCustomValidationCallback = $ignoreCerts
$client = [System.Net.Http.HttpClient]::new($handler)
$url = 'http://fritz.box:49000/igd2upnp/control/WANIPConn1'
$body = @"
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">
<s:Body>
<u:ForceTerminationResponse xmlns:u="urn:schemas-upnp-org:service:WANIPConnection:2" />
</s:Body>
</s:Envelope>
"@
$content = [System.Net.Http.StringContent]::new($body)
$content.Headers.ContentType = 'text/xml'
$content.Headers.Add('SoapAction', 'urn:schemas-upnp-org:service:WANIPConnection:2#ForceTermination')
$result = $client.PostAsync($url, $content).Result

# wait for the new IP:
$body = @"
<s:Envelope xmlns:s='http://schemas.xmlsoap.org/soap/envelope/'>
<s:Body>
<u:GetExternalIPAddress xmlns:u='urn:schemas-upnp-org:service:WANIPConnection:2' />
</s:Body>
</s:Envelope>"
"@
$oldIp = $null
foreach ($sec in 1..30) {
    $content = [System.Net.Http.StringContent]::new($body)
    $content.Headers.ContentType = 'text/xml'
    $content.Headers.Add('SoapAction', 'urn:schemas-upnp-org:service:WANIPConnection:2#GetExternalIPAddress')
    $result = $client.PostAsync($url, $content).Result
    $response = $result.Content.ReadAsStreamAsync().Result
    $stream = [System.IO.StreamReader]::new($response)
    [xml]$data = $stream.ReadToEndAsync().Result
    $ip = $data.Envelope.Body.GetExternalIPAddressResponse.NewExternalIPAddress
    if ($oldIp -eq $null) {$oldIp = $ip; write-host "old-IP: $oldIp"}
    if ($ip -and $ip -ne $oldIp) {break}
    sleep 1
}
write-host "new-IP: $ip"
$client.dispose()

works fine. Nice :-)