Just to add to the record, I've been having similar problems with my ASUS t100ta tablet running 8.1 full version. Our network situation is a Netgear 3400v2 router connected to several wired and wireless devices, including an old Linksys router with DHCP disabled serving as a hub to connect a printer and an old wired computer.
This configuration has worked fine for 3 years with Windows 7 and Vista computers, and all the Android and iOS devices in the house do fine connecting wirelessly. But the Win8.1 tablet drops to "Limited" connectivity every time it goes to sleep and comes back on. The easiest way to fix seems to be to disconnect, then release and renew the IP address.
But before I figured out what was going on, I spent a day with the cable guy and a couple of hours on the phone with Netgear tech support. Finally I isolated the fact that it was only the Win8.1 device that's having the problem.
AND the hub connection seems to have something to do with it. If I unplug the hub, the connection comes back on. As soon as I plug the hub in again, the connection drops. Meanwhile all the other devices are unaffected.
I have not tried all the solutions offered here, yet. But will post update if something works.