How do I enter CS6 license key when Adobe Application Manager immediately tries to authenticate against my expired Creative Cloud membership?

I have CS6 Master Suite installed along side my now-expired Creative Cloud apps (I am evaluating whether to renew my subscription at this time). Both CS6 and Creative Cloud are currently unlicensed due to a snafu with my educational license, but I have a new CS6 license that I am trying to register CS6 with. However, upon launching any CS6 program, Adobe Application Manager then launches and tells me that my Creative Cloud membership is now expired. How/where to I enter my CS6 license key? I have already tried entering my new license on my Adobe account profile > “My products and services”, and reinstalled CS6 applications from my original disk image (MasterCollection_CS6_LS16.dmg).

Thanks in advance,

Liz