DVD Talk Forum - Sudden Buffering Issues on Multiple 360s?

So I have 3 360s that I use to stream media from my computer. Recently, all three started to have buffering problems. Based on this, I would assume that it would have to be caused by either my computer, my network, or something added to all 3 360s recently (like apps). As far as I know, nothing has changed in my network, or on my computer. I've added some apps to all 3 360s, like Netflix and UFC (I should mention I am in Canada, since the app selection might be different), but I've used those on the different consoles with my gamertag on a USB key, and all worked well. For the router, I've tried resetting, using static ips and no luck. With my computer I've tried defragging, scans, etc and no luck. I've also tried files on an external playing through the computer as well as ones that are on the computer hard drive, and both buffer.

Does anyone have any other ideas? Suggestions? Have there been any updates on the 360s lately that have caused these issues? I've done some googling and people did mention some issues a couple of weeks ago, but they appear to have been fixed. I generally just use Windows Media to stream, but I've also tried TVersity and Playon and they give me buffering issues as well.

Any help would be much appreciated.