https://www.infopathdev.com:443/blogs/jim/archive/2013/08/02/multiple-credential-prompts.aspxYou may have come across SharePoint sites where you get repeated credential prompts. Or, you get prompted multiple times setting up a data connection in your InfoPath form. This issue cropped up with the introduction of Windows Vista and continues onenCommunityServer 2007 SP3 (Build: 31118.962)