宏基4750Gwifi灯不亮没法连接无线网络

Broadcom NetLink (TM) Gigabit Ethernet这个是有线网卡，4750G的无线网卡应该是Atheros AB5R97。

无线指示灯不亮，基本就是无线网卡驱动没装好，要不就是无线网卡故障了。

推荐你先去官方下载无线网卡驱动，安装一下试试看。

4750G Atheros AB5R97驱动下载地址：

WIN7系统：http://global-download.acer.com/GDFiles/Driver/Wireless%20LAN/Wireless%20LAN_Atheros_9.1.0.209_W7x86W7x64_A.zip?acerid=634563166530646578&Step1=NOTEBOOK&Step2=ASPIRE&Step3=ASPIRE%204750G&OS=ALL&LC=zh-chs&BC=ACER&SC=CHINA_1

WINDOWS XP系统;http://global-download.acer.com/GDFiles/Driver/Wireless%20LAN/Wireless%20LAN_Atheros_9.1.0.209_XPx86_A.zip?acerid=634792358815326795&Step1=NOTEBOOK&Step2=ASPIRE&Step3=ASPIRE%204750G&OS=X02&LC=zh-chs&BC=ACER&SC=CHINA_1