Here is my issue.  I've been doing some testing (all local on my home wifi network) as some others in the forum are seeing some very long times for the bit rate coming from the flow to reach the 3,500-4,000 range.  I just got my Flow 3 days ago and started doing some testing.  Out of the gate it worked great, I was getting 3,500-4,000 Kbps consistently anywhere around the house.  Now I'm finding that if I close the app, and open it up at a later date (1 min later or a day later), the speed gets capped at 1,000 Kbps.  The quality is also much lower than when I'm in the 3,500 range…obviously.  I'm not sure why this is happening, but I do have the latest kernal and firmware installed.  My box had been doing this since purchased.  I have my flow hard wired connected to my Netgear wireless dual band router.  Speeds to my Ipad are great from the router.  Wireless on the Flow is turned off.
Any ideas as to what might be going on?  Again, I get great speeds after the first reboot of the Flow (pulling the power cord and putting it back in), but after closing the app and opening it again I am capped.  Any ideas would be great.  Thanks.

Got on the phone with support today, and they suggested resetting the Flow, and re-running the setup program.  I did that right when I got home, and now I'm all good to go.  Stays in the 3,500 range no matter how many times I close the app.  I will keep testing over the next few days, but for now that looks like the solution.  There's a little white reset button on the back of the Flow.  Hold it down for at least 10 seconds.  The light on the top will turn red, and then start flashing red.  I think it's reset when it starts flashing red.  I just held it for at least 10 seconds.  Set it up like a new box and all is good on the ipad now.  Might have something to do with firmware updates?  I did my firmware update after setting it up initially on an old firmware and kernel.  Hope this solves your problem!

When I ran setup after resetting it looked like I was setting it up for the first time. It asked me to name it again and asked what zip code for the guide and all of that. Not sure why it's not asking you? Maybe try another reset?

Well, the reset exercise fixed the issue for last evening, but after getting home tonight I tried the ipad app and sure enough I'm capped again at 1,000Kbps.  Not sure what is going on.  Hoping it is a bug they are fixing with an update to the Ipad app.

I'm going to try it now for 15 min. I'll post back.

I haven't tried the iPad remote over Wifi yet.  I will try to do that in the next couple of days.

I am in the same boat as you.  I really want to figure this out.  I really bought it so I could use it with my iPad.  I see how well it works on the iPhone, Mac, and iPad after 15 minutes and it feels like it is taunting me now.