Untitled

Opening port
Port open
connecting...
connected
connected
Posted Data via client.println():

POST /upnp/control/deviceinfo HTTP/1.1
HOST: 192.168.178.1:49000
CONTENT-LENGTH: 267
CONTENT-TYPE: text/xml; charset="utf-8"
SOAPACTION: "urn:dslforum-org:service:DeviceInfo:1#GetSecurityPort"
USER-AGENT: AVM UPnP/1.0 Client 1.0

<?xml version="1.0"?>
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
<s:Body>
<u:GetSecurityPort xmlns:u="urn:dslforum-org:service:DeviceInfo:1">
</u:GetSecurityPort>
</s:Body>
</s:Envelope>
Response recieved:

HTTP/1.1 500 Internal Server Error
DATE: Tue, 19 Mar 2019 22:07:40 GMT
SERVER: FRITZ!Box 7530 UPnP/1.0 AVM FRITZ!Box 7530 164.07.02
CONNECTION: keep-alive
CONTENT-LENGTH: 424
CONTENT-TYPE: text/xml; charset="utf-8"

<?xml version="1.0"?>
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
<s:Body>
<s:Fault>
<faultcode>s:Client</faultcode>
<faultstring>UPnPError</faultstring>
<detail>
<UPnPError xmlns="urn:dslforum-org:control-1-0">
<errorCode>502</errorCode>
<errorDescription>XML error</errorDescription>
</UPnPError>
</detail>
</s:Fault>
</s:Body>
</s:Envelope>HTTP/1.0 400 Bad Request
Content-Length: 182
Content-Type: text/html

<HTML><HEAD><TITLE>400 Bad Request (ERR_INVALID_REQ)</TITLE></HEAD><BODY><H1>400 Bad Request</H1><BR>ERR_INVALID_REQ<HR><B>Webserver</B> Tue, 19 Mar 2019 22:07:40 GMT</BODY></HTML>


disconnecting.