I have an Apple Enterprise In-House application that I am unable to install. I've tried 3 different iOS10 phones and an iPad - I get the same error - Unable to Download App "Application Name" could not be installed at this time.
I've checked the log while the phone is installing the application. I don't get any errors regarding invalid certificates, etc - it all looks good to me also.
The app just seems to refuse to install and the logs don't help.
I've posted the log here http://www.zackburns.com/files/public/tmp/ios10noinstall.txt
I've also verified the server is doing TLS 1.2, etc.