电脑系统能做不能展开_为什么电脑不能扩展屏幕了

WIN7能上QQ网页但是无法打开网页是因为DNS服务器IP设置不正常。

解决方法：

1.在电脑桌面用鼠标右键点击右下侧的网络图标。选择“网络共享中心”点击进入。

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2.进入之后可以在左侧看到有个“更改适配器设置”点击进入适配器页面。

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3.用右键点击“本地连接”在出现的选择栏点击“属性”

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4.在弹出的属性面板双击Internet协议版本4进入DNS和IP设置。

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5.在下面DNS服务器IP选择处切换成别的DNS服务器IP.例如：114.114.114.114，修改好之后点击下面的确定。

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