This response is absolute rubbish. I bought my router brand new about 3 weeks ago (D-Link DIR-810L). Other laptops in the house (one with Vista, one with XP, one with 7.1) and my WD media player (which all 3 use wifi), and a Sipura VOIP box (wired) have
absolutely no issues with this new router. Although I'm new to Windows 8.1, I'm not a newbie when it comes to computers, networking, and programming. I've done enough troubleshooting in my lifetime (for work and for fun) to recognize when someone is grasping
at straws for an explanation. Keep grasping because this one didn't get it. A lot of people are having this issue and claiming hardware issues doesn't cut it.
So far the best way that I've been able to handle it (I only got this computer 2 days ago and haven't had much time to play with it since I work for a living and have a life outside of work), is by going into the network settings, disconnecting, and then
reconnecting to the network. Do NOT waste time rebooting the router because you'll spend all your free time waiting for the router to reboot because you have to reboot it every 10 minutes or so.
I've gone into the power management settings for it and unchecked the box that lets the system put it to sleep, but that didn't work either. I looked around for a setting that might have a maximum connection time but have been unable to find it. I will
keep my eye out for such a setting while I try to figure this out. There's an issue with the operating system/driver somewhere since this seems to span across all network adapters (I've done my research).
Instead of fluffing people off, Microsoft needs to acknowledge that there's an issue here and figure out a way to fix it. I have another 12 days to return my laptop. If I can't figure this out in that time, this laptop is going back and don't expect me
to be very happy with MS if that happens. Then again, if MS is up in an ivory tower, it probably won't care...