I am reposting this due to the number of complaint threads I am seeing, again, from folks who are unaware that they are inadvertently causing their own huge delays in getting duty finder groups:
Select all four language buttons (JEDF) at the top-right corner of the Duty Finder window.
I'm surprised it took me and other folks to realize this, but there was something we were NOT doing until this weekend, which was actually preventing us from getting groups in Duty Finder more frequently, and it has to do with the server we play on.
The language setting in the Duty Finder window!
I and my Free Company are english-only speakers on a Japanese Server. So, naturally, we had our default language set to "E" only, for english. Well, it turns out this was actually hindering our ability to get groups in Duty Finder.
Once we started checking each language box, JEDF, our time spent in the Duty Finder dropped significantly. It didn't dawn on us until now that we were actually restricting ourselves from getting into groups where everyone else only had the "J" language selected. Sure, once we changed it to where we selected all languages we got into many more groups - and most of them didn't speak a lick of English, it really didn't matter much for duties we knew how to complete anyways. We've cut-and-pasted a simple phrase from Google Translator to let the rest of the group know we are English-only, a simple greeting, and if they need to give us instructions to please say our name first so we know to copy their message and translate it via Google's Translator.
Anyways. I hope this tip helps other folks. It was very surprising to us to see how significant of a difference it makes when you select ALL languages in Duty Finder.
Edit: As others noted in this thread, for best results, make sure you know the Duty fairly well before using this method to get groups faster in Duty Finder. While people should not be offended over others joining a Duty Finder group and speaking another language (it promotes socializing), some people are just downright mean about it. I haven't noticed this on the Japanese servers, but from the sounds of it, the NA/EU servers seem to have an issue over language barriers. Use of the in-game Auto-Translator is good for overcoming these, or do what I am my pals do: cut-and paste to Google Translate for more complex issues.
Good luck!