电信的光猫有WIFI功能, 为什么不让别人使用
因为光猫的最主要作用是将光信号与电信号之间的调制/解调，wifi只是其中一个附属功能。由于目前中国电信为了响应国家宽带降费提速，以往采购的都是华为、中兴这些大品牌光猫，质量非常好。
光猫一般是放在弱电箱中，而大部分家庭的弱电箱都是在门口，户型不好的话，相当你的wifi架在角落里头，势必造成全屋很多网络死角，进而让你的网络体验无比地差。
他们提供的光猫自带WiFi功能，且可以让用户用，我现在就在用，加上我自己买的路由器，所以家里现在是两个无线信号，好处是路由器分散放置，整个家各屋的信号都满格。
一般电信光猫都是免费给用户使用的，如果使用好的无线网络网卡，那么对运营商来说是一个较大的成本负担。
光猫的WiFi只是作为附加功能，目的是让人省事，不需要额外再买路由器！在我看来，现阶段的光猫自带的WiFi就像格力的手机，是一种延伸功能，只能说还能用，并不能代表很好用。
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