Hi exbrian77,
Thank you for visiting Sony Community!
This is one of the reasons why we do not recommend upgrading or changing certain parts of Vaio computers. Did you install the Intel Card 8260 AC driver? Make sure to install the compatible driver based on the current operating system. Run Windows Update as well.
For further assistance, we kindly recommend visiting our Sony Global Website for information on contacting the Sony Support Center in your region at http://www.sony.net/SonyInfo/Support/.
Regards,
Vincent
If my post answers your question, please mark it as "Accept as Solution"