Whats wrong with this command?

I'm trying to open a port on my UPnP nat but its
failing...

POST /control?WANIPConnection HTTP/1.1
HOST: 192.168.2.1:80
CONTENT-LENGTH: 1228
CONTENT-TYPE: text/xml ; charset="utf-8"
SOAPACTION:
"urn:schemas-upnp-org:service:WANIPConnection:1#AddPortMapping"

<?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:AddPortMapping
xmlns:u="urn:schemas-upnp-org:service:WANIPConnection:1">
			<NewRemoteHost
xmlns:dt="urn:schemas-microsoft-com:datatypes"
dt:dt="string">
				139.48.44.24
			</NewRemoteHost>
			<NewExternalPort
xmlns:dt="urn:schemas-microsoft-com:datatypes"
dt:dt="ui2">
				21
			</NewExternalPort>
			<NewProtocol
xmlns:dt="urn:schemas-microsoft-com:datatypes"
dt:dt="string">
				TCP
			</NewProtocol>
			<NewInternalPort
xmlns:dt="urn:schemas-microsoft-com:datatypes"
dt:dt="ui2">
				21
			</NewInternalPort>
			<NewInternalClient
xmlns:dt="urn:schemas-microsoft-com:datatypes"
dt:dt="string">
				192.168.2.5
			</NewInternalClient>
			<NewEnabled
xmlns:dt="urn:schemas-microsoft-com:datatypes"
dt:dt="boolean">
				1
			</NewEnabled>
			<NewPortMappingDescription
xmlns:dt="urn:schemas-microsoft-com:datatypes"
dt:dt="string">
				ftpd
			</NewPortMappingDescription>
			<NewLeaseDuration
xmlns:dt="urn:schemas-microsoft-com:datatypes"
dt:dt="ui4">
				1200
			</NewLeaseDuration>
		</u:AddPortMapping>
	</s:Body>
</s:Envelope>

This is the response I'm getting.

<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:schemas-upnp-org:control-1-0">
               <errorCode>
                  501
               </errorCode>
               <errorDescription>
                  Action Failed
               </errorDescription>
            </UPnPError>
         </detail>
      </s:Fault>
   </s:Body>
</s:Envelope>


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