After the update that was done to the test server on Friday, June 14, 2013, I was able to complete the client update. But when I actually went into the FFXI Test Client, as it was preparing to show the title page, I received an error message "No Valid Content ID found". When the message was acknowledged, I was returned to the Playonline Viewer.

I had been able to get on the test server before. The most recent time was yesterday (Thursday, June 13). The only change I know of that could do this was the June 14 update.