I am thinking that there is a security setting causing my problem.
Set up a new domain (someone else did it). Joined a single computer to the domain. It is a new computer running Win8.1 Pro. Very small network. 10 users. Logged into the computer with a domain user account. If I try to install a new program or even update a program that requires elevated admin privileges, it prompts me for the new credentials. When I enter them it acts as if they are incorrect. It just keeps prompting me to supply the credentials. If I log the domain user account off and log back in with the domain admin account (the same one that wouldn't work before) it accepts them and completes the install.
I also have a QNAP TVS-663 NAS in the network. I believe that I have it setup properly for Active Directory authentication. The shares are showing up on the network from the domain computer but the same thing is happening - It prompts for credentials and if I use the domain user or the domain admin or the local admin for the NAS crediential it will not connect. It just keeps prompting for new credentials.
I am sure it is a setting that I have wrong, but cannot find it.