Linking projects between RTC 3.0 and RQM 2.0.1

I've followed the instructions to setup cross server trusted communications as per this tech note tip -> http://jazz.net/library/article/304
When trying to setup to link the projects I get this error trying to setup the association between the RTC server and the trusted RQM server.

Unable to load URL: /ccm/proxy?uri=https://tomloeberw510.raleigh.ibm.com:9445/jazz/oslc_qm/catalog, Status: 500

Note that I can successfully access https://tomloeberw510.raleigh.ibm.com:9445/jazz/oslc_qm/catalog
from the browser.

Any idea what I may have done wrong?