I have a 2 month old lenovo Y510
15.8 gb RAM
64 bit Windows 8.1
After upgrading to Windows 8.1, I keep on getting dropped out of networks and receiving messages about limited connectivity, although I never had these things happen to me before.
During upgrade process, Microsoft Updates the Network Adapter drives that have caused the problem for many. Therefore, you are advised to Revert Network Adapter Drivers to manufacturer release... To do this, check this article and jump to Revert Network Adapter Drivers