Found the solution. Add -nupd after build.exe or build.command in your build scripts. Apparently that tells it to skip looking for updates. Solved the problem for me!
I'm seeing the same issue. Looking around the web, I found an old thread that references http://updates.installshield.com/ which appears to be down. I also found reference to an attribute doNotUploadProfileData="true" but it's not at all clear from t...