I need to send someone a copy of my beta app so I've registered their devices and email them an Ad Hoc ipa file, but it won't complete installation. I know the profiles are correct, and I know that the ipa file installs to my device. Does the ipa file not email? Is there a better way to share the file?
How to share an .ipa file
What process did you use to install, in both examples? If iTunes, which versions?
Is the recalcitrant device listed as one of the 100 max on your account in the Member Center?