https://www.infopathdev.com:443/forums/142.aspxAre you exploring new features coming up in 2010? Share information and ask questions here!enCommunityServer 2007 SP3 (Build: 31118.962)https://www.infopathdev.com:443/forums/thread/78402.aspxWed, 09 May 2012 15:38:02 GMT033a2e2d-04e2-4a9d-be01-a4634161eefd:78402BMARU0https://www.infopathdev.com:443/forums/thread/78402.aspxhttps://www.infopathdev.com:443/forums/commentrss.aspx?SectionID=142&PostID=78402Can anybody reply on this query?https://www.infopathdev.com:443/forums/thread/78236.aspxWed, 02 May 2012 14:28:16 GMT033a2e2d-04e2-4a9d-be01-a4634161eefd:78236BMARU0https://www.infopathdev.com:443/forums/thread/78236.aspxhttps://www.infopathdev.com:443/forums/commentrss.aspx?SectionID=142&PostID=78236Hi, I am trying access UserProfileService Web service on InfoPath 2010 Web browser Administrator Approved Forms (Domain/Full) to populate the User Details on form Load .I am using claim based Kerberos authentication website. I have configured the SPN for website and SQL server to use Kerberos authentication.This forms works in Preview Mode using claim based Kerberos authentication website and in browser & Preview Mode with using claim based NTLM authentication. My web site has anonymous and impersonation authentication is disabled in IIS.I have disabled the sable the authentication loopback check by DisableLoopbackCheck=1 in registry I go the following error on browser......An error occurred while trying to connect to a Web service. An entry has been added to the Windows event log of the server. Log ID:5566 Correlation ID:381b95c1-df14-42e7-9285-bf75830d2b3f In Log file I got the below error... The following query failed: UserProfile (User: 0#.w|domain\username, Form Name: IP: , Connection Target: , Request: http://sitename/_layouts/FormServer.aspx?XsnLocation=http://sitename/sites/IT/FormServerTemplates/UserProfileServiceTest4000.xsn&SaveLocation=http:// sitename /sites/IT/SupportServices/UserProfileTest&ClientInstalled=false&Source=http://sitename/sites/IT/SupportServices/UserProfileTest/Forms/AllItems.aspx&DefaultItemOpen=1, Form ID: urn:schemas-microsoft-com:office:infopath:UserProfileServiceTest4000:-myXSD-2012-04-11T11-40-37 Type: DataAdapterException, Exception Message: The remote server returned an error: (401) Unauthorized. The remote server returned an error: (401) Unauthorized.) I have followed the work around suggested and tried to test it by providing explicit data connection File and putting DOMAIN\test.user1 12313d2 Or on form load b y changing the Account name by http://stevessharepointnuggets.blogspot.co.uk/2012/03/infopath-2010-using-user-profile.html?m=1 concat (“domain\”,username()) or substring-after (username(),”|”) and call web service to get the data. I think I have tried all the options available to solve the 5566 error but could not get any success. Please help me Thanks in advance