Windows 8.1 has messed up my connection

[Kevocalypse]

Since updating to windows 8.1 my internet signal says limited or not connected even though it is working fine. Now I can't even connect without being really close to the router.
I have an Acer Aspire v5 552g 8632.

 

[Tradesman1]

Do you have the latest BIOS and the latest wireless driver