Problem with Authentication / NuSOAP

Hello All, I´m just trying to implement an SOAP client with nusoap and I am experiencing some problems with the authentication against the maschine offering the webservice. There I have to auth via HTTP-basic. So far I use this code for that: $s = new soapclient("http://172.16.183.28/dev/webservice/pbx.wsdl",true); $s->username = 'MHamann'; $s->password = 'test'; $s->setCredentials('MHamann','test'); Are the last 3 lines the same or is there a difference between? Another problem I have only with this special webservice (with Amazon or Google it works perfectly) is that I can´t create a proxy object. Just with inserting the line "$proxy = $s->getproxy();"; I get this error when I execute my script. ------ Parse error: parse error, expecting `T_STRING' in /var/www/PhoneDap/test/nusoap.php(4085) : eval()'d code on line 6 Fatal error: Cannot instantiate non-existent class: soap_proxy_498277202 in /var/www/PhoneDap/test/nusoap.php(4087) : eval()'d code on line 1 ------ I am pretty new to this soap thing and I don´t know if it may be a fault in the webservice I want to use, my code or a problem with the authentication.... Does anybody have any idea what the fault may be ? Thank you in advance Michael