Why do I get a "Sign in failed" message on one of my computers when I try to sign in to Photoshop CC 2014?

Question

I have two (2) separate Creative Cloud single-app memberships. One is Adobe Muse, which I've had since June 5, 2013, and the other is the Adobe Photoshop Photography Program (PPP), which I've had since September 17, 2013. I own each of these memberships for different reasons and use them on different computers and in different environments.
I have three (3) computers; a Home computer, a Laptop, and an Office computer.  I have Photoshop and Lightroom (from the Photography Program) installed on the Home computer and the Laptop; a total of two computers. I have Muse (a different single-app membership than the PPP membership) installed on the Home computer and the Office computer; again, a total of two computers. I have run this configuration without incident since I first purchased the memberships. In fact, before I joined the PPP, I verified with Adobe that this configuration was ok and was told that they were separate memberships and that it would not be a problem.
I upgraded Photoshop CC to Photoshop CC 2014 (as well as Lightroom) on the Home computer and Laptop and everything still worked without incident. I also updated Muse CC to Muse CC 2014 on the Home computer and again, everything ran as before without any problems. Later, when I updated Muse CC to Muse CC 2014 on the Office computer, I received a "Sign in failed" error message that said "[my] adobe ID [[email protected]] has already been used to activate the software on two other computers or devices". Which was not true!
After a Chat with a fairly useless customer service agent I selected the option, on the "Sign in Failed" dialog, to "Sign me out of all other computers and devices" and was able to sign in to Muse CC 2014 on the Office computer. Later, when I returned home I was able to successfully sign in to Muse CC 2014 on the Home computer - both of the two (2) allowed usages were now working.
After verifying that Muse CC 2014 was working on the Home computer, I launched Photoshop CC 2014 to see if it had been effected - it was.  When asked I entered my Adobe ID and password, and was able to sign in successfully. Just to keep the math straight, I am now signed in on two (2) computers with the Muse CC 2014 membership and one (1) computer with the Photoshop CC 2014 membership.
I now attempted to Launch Photoshop CC 2014 on the Laptop and got the "Sign in failed" error message, which again said "[my] adobe ID [[email protected]] has already been used to activate the software on two other computers or devices". Again, this was not true! The Laptop would have been the second computer to have Photoshop CC 2014 installed under the Photoshop Photography Program membership, if I could have signed in.
Since these are separate memberships (albeit under the same Adobe ID) I should be able to, and have been able to, install them on any computer as long as each is only installed on two (2) computers.
I need help.  This is causing me a great deal of inconvenience.
The problem started with the 2014 updates. How do I (or Adobe) fix this FUBAR problem?
Respectfully,
WRG

Answer 1

This is a user forum I feel you need to deal with Adobe customer services or support chat did not work in you case.