You're not one for details are you?

So you tried SD and HD with EQUAL results?
What does "good speed" mean?
I had 2 TRENDnet TEW-633GR 300Mbps Wireless N Gigabit Routers bridged with under normal network traffic had GREAT speed but just wouldn't cut it for D* HD streaming (worked fine for 720p & 1080i XBMC streaming though). The thing with wireless N is it will definitely go faster than you need but drop below what you you need and is completely at the mercy of it's environment (phones, fans,neighbors) D* could buffer the dvr to dvr streaming like they do the VOD to give it more tolerance in the future, but not so much on the non-dvr boxes.
Sorry. Yes, SD and HD with equal results. Here is my configuration:
(1) -HR22-100 with CE ......hardwired to DLINK DIR655 N router.
(2) -HR22-100 with NR ......wireless N to DIR655 using a WGA600N (working great)
(3) -HR22-100 with NR.......wireless N to DIR655 using a WET610N (unable to access media)
If I replace the WET610N and use the WGA600N on the (3) HR22 everything works.
When I say "good speed" I mean that. I'm an IT guy although sometimes I need help from people who knows more than I do. The WET610N works on everything else besides the MRV and is always faster than the WGA600N. I'm talking about real speed (or real throughput). If I use Directv2pc with the WET610N I can watch HD just fine . I have never had a single stutter watching HD video using the WET610N.
One more thing: The wet610N sometimes work with MRV (no "unable to access media) but as soon as I do a trickplay and try to "start over" I get the msg. After getting the msg it no longer works even restarting all receivers and all the network gear. After several hours it will work again for few minutes until I do the trickplay again (FF or RW).
It looks like something is causing the WET610N to refuse the MRV instructions.
I spend 2 hours yesterday with a senior Linksys engineer on the phone and he also couldn't find anything wrong. Finnaly he suggested I should get a replacement and that's what I'm doing now. I have a feeling that the new unit will behave exactly the same, though. I will keep you informed when I get the new WET610N.