在服务器里面打开不了网页，没法上网，可能不少人在使用服务器的过程都曾遇到过这类情况。那么，会是什么原因导致服务器里面没网络无法上网呢？
1、网络设置的问题
这种原因比较多出现在需要手动指定IP、网关、DNS服务器联网方式下，及使用代理服务器上网。仔细检查计算机的网络设置。
2、DNS服务器的问题
当IE无法浏览网页时，可先尝试用IP 43.240.157.X来访问，如果可以访问，那么应该是DNS的问题，造成DNS的问题可能是连网时获取DNS出错或DNS服务器本身问题，这时你可以手动指定DNS服务（地址可以是你当地ISP提供的DNS服务器地址，也可以用其它地方可正常使用DNS服务器地址。）
修改DNS是在网络的属性里进行，（控制面板—网络和拔号连接—本地连接—右键属性—TCP/IP协议—属性—使用下面的DNS服务器地址）。
3、网络协议和网卡驱动的问题
IE无法浏览，有可能是网络协议（特别是TCP/IP协议）或网卡驱动损坏导致，可尝试重新网卡驱动和网络协议。
4、HOSTS文件的问题
HOSTS文件被修改，也会导致浏览的不正常，尝试清空HOSTS文件里的内容。
5、服务器里面中毒的问题，在服务器里面无法访问外网，这种情况，可能就是服务器里面有中毒情况，中毒是会导致出现这种问题的原因之一了。这个时候，我们可以扫毒看看。
服务器IP
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