Authorization error while testing WEB SERVICE with SOAP UI

Hello All,

when i am trying to test my web service in SOAP UI i am getting following error.

<faultstring xml:lang="e">Authority check failed</faultstring>

</soap-env:Fault>

I am providing user id and password of my server also. we are using ECC 6.0 server. please let me know what needs to be checked.

Kumar.