InfoPath forms in BizTalk BASSite don't work well with Internet Enhanced Security enabled

I tried to add a partner profile in the BASSite with the InfoPath form. When I tried to create a Global Port, I had to select a pipeline. When I tried to do that, I got an access denied message. The error number I got was -2148074254.

After checking the web log I discovered that InfoPath didn't try to authenticate. It turned out that it didn't do that because it tried to reach the webservice over http://<servername> which wasn't part of my Local Intranet configuration.

I solved by adding this site to local intranet. Another way to solve it is to remove Internet Enhanced Security and then check the “include local address“ checkbox.