Well you seem to be the only one to seemingly has a problem with this router. Telling us that it's "clunky" doesn't mean anything nor provide any information to your problem with this router.
Your information seems to let us know that your process, impatience and configuration of this router is the issue here.
Maybe someone can review your router settings with you using Link>
teamviewer if your interested. Its safe and secure.
If your not interested in this, then you'll need to contact D-Link support ON the PHONE and get there help with this. Maybe they can help you better.
If after you have exhausted all of these options, maybe someone would be willing to buy your 5500 from you so you can find something else that works for you and move on.
Be lucky your entire thread wasn't removed. This is not a forum for other competing router Mfr, if you want post about other router Mfrs, go to there forums. Trust me, we are not worried about you sir.
Good Luck!!!
Ok updated to the newest firmware. The install is still clunky. Right after you do the install and final reset to default, it load up a set up screen in which it does not save anything.
And yes, I should have a lack of motivation. This product should be more refined before release and not rely on a few of us that spent money to beta test it.