No WiFi when in Bootcamp with Windows 7

Question

I have a MBP running Yosemite with Bootcamp running Windows 7 installed. My problem is that no matter how many wifi drivers I try in Windows I cannot get the wireless card to pull up any networks. It works fine in OS X - sees all networks and connects with a strong signal.
But when I switch to Windows here's what happens:
I can see the wifi bars down in the system tray but when I highlight and click it nothing pops up... When I hover the cursor over the bars it highlights and when I click it, the symbol depresses like its being pressed but no network list pops up at all... Anyone know what I'm doing wrong here? I'm thinking it might be a compatibility issue between Yosemite and Bootcamp/Windows 7? I have downloaded and installed the latest bootcamp wifi drivers and still no go... Any help is greatly appreciated.

Answer 1

Based on Boot Camp: System requirements for Microsoft Windows operating systems - Apple Support the drivers for your MBP are Boot Camp Support Software 5.1.5621. Using the Bootcamp.xml file in the package, the version number is 5.106.199.1, but your screen shot shows 6.30.223.215.
<Name>Broadcom 802.11 SDIO Network Adapter Driver
  <InfName>bcmwl6.inf</InfName>
  <Class> Net</Class>
  <ClassGUID> {4d36e972-e325-11ce-bfc1-08002be10318}</ClassGUID>
  <CatalogFile>BCM43XX64.CAT</CatalogFile>
  <Provider>Broadcom</Provider>
  <DriverVer>12/13/2013, 6.30.223.215</DriverVer>
  <ServiceBinary>bcmwlhighsd5.sys</ServiceBinary>
  <HardwareID></HardwareID>
  <isX64>Both</isX64>
  </Name>
  <Name>Broadcom 802.11 SDIO Network Adapter Driver
  <InfName>bcmwl63.inf</InfName>
  <Class> Net</Class>
  <ClassGUID> {4d36e972-e325-11ce-bfc1-08002be10318}</ClassGUID>
  <CatalogFile>BCM43XX64.CAT</CatalogFile>
  <Provider>Broadcom</Provider>
  <DriverVer>12/13/2013, 6.30.223.215</DriverVer>
  <ServiceBinary>bcmwlhighsd5.sys</ServiceBinary>
  <HardwareID></HardwareID>
  <isX64>Both</isX64>
  </Name>
  <Name>Broadcom 802.11 Network Adapter Driver
  <InfName>bcmwl6.inf</InfName>
  <Class>Net</Class>
  <ClassGUID> {4d36e972-e325-11ce-bfc1-08002be10318}</ClassGUID>
  <CatalogFile>BCM43XX64.CAT</CatalogFile>
  <Provider>Broadcom</Provider>
  <DriverVer>11/13/2012, 5.106.199.1</DriverVer>
  <ServiceBinary>bcmwl5.sys</ServiceBinary>
  <HardwareID></HardwareID>
  <isX64>Both</isX64>
  </Name>
One option you can try is to uninstall the current driver and reboot and ensure that the WiFi adapter shows up in 'Other Devices' (without any drivers). Install this version and test and post back your results.