Problem with HTTPS and maybe cookies

Hello, I have to deal with a SSL web service that requires an authentification. I have to send a login password: Authorization: Basic base64(login:password) I think I have it. I also have to send a cookie (SMCHALLENGE=YES) and I think it's OK too. But i have a first problem: when calling the service, i get the following error in SOAP_Transport_HTTP::_sendHTTPS: curl_exec error 22 The requested file was not found When running the call manually using curl, i get an auth failure error, but the service seems to be here. Is it an auth error ? (i've read somewhere that error #22 was raised for any 400+ HTTP Error code, so it would be raised for 401 as well but I'm not sure). Katana mailto:katana@katana-inc.com