The IR blaster does work, but sometimes (often) it will stop responding for a few seconds, and I'll have to hit the button 2-4 times. It doesn't seem to matter how close the remote is or what direction it's pointed. I'm not sure if its a hardware or software issue.
I'm using it with windows media center and the compatibility drivers for it. It will also randomly flip to another screen when I hit a completely unrelated button, but that is fairly rare. For example I hit the fast forward button during a recorded show earlier and it opened the Pictures library.
There is a lag time when switching channel specially in HD. Even when using mice the 2250 have delays before displaying the next channel.
Same thing with PVR functions.
I observe it more often when i use Antenna instead of cable. When the signal is weak there is more delay to produce the image on the screen.
My remote from hauppage function normally w/o issue. I don't use it since i have my logitech remote.
Try to update the driver. Remove/clean the remote driver and install the latest from hauppage website.
It isn't a delay, it just will not read the remote for a few seconds. I do have up to date drivers, and already tried uninstalling/reinstalling. One of the remotes I tried was the one that came with the tuner. The tuner works fine.. the remote doesn't work right. Like I said before, I don't know if that is actually because of the tuner hardware, the software to use it with Windows Media Center, or the IR blaster cable.
Get it replaced. Its an expensive setup. You don't deserve a bad product.
The problem with that is I don't know what the problem is, and its very likely that I'll have the same issue with the replacement, and just waste money on shipping, won't be able to record shows for a week, and still have the issue
Too bad I can't vote myself as best answer. I finally found the issue! I found some obscure thread talking about this same issue, and one post on it said a USB receiver fixed it, and every post after said it worked for them as well. It works for me, not an issue since.