Installing the wrong driver can cause conflicts. For example, a mismatched Wi-Fi driver will show “No connections available” even though the hardware works fine.
Sony no longer hosts VAIO drivers on its global site (VAIO support ended around 2015–2016). Use these sources: drivers sony vaio pcg 71911m drivers
: VAIO Event Service and VAIO Control Center (required for the keys and special buttons like ASSIST). 3. Driver Installation Guide Software & Drivers - Support - VAIO Installing the wrong driver can cause conflicts
Sony has largely moved away from dedicated download pages for older VAIO models, but you can still find essential software through these official portals: drivers sony vaio pcg 71911m drivers