To troubleshoot Citrix issues, I often open cdf traces with CDFControl, a Citrix tool. Unfortunately I discovered that http://ctxsym.citrix.com is currently not responding (time out). You need that to download the Citrix symbol files. According to http://discussions.citrix.com/topic/354885-tmf-files-from-ctxsymcitrixcom-not-downloadable/, Citrix is aware of the issue and works on bringing the server back online. Be patient….
19.09.14: Solved, it’s back working!