笔记本电脑MacBook连上wifi 但不能上网 有黄色三角感叹号 显示无Internet 但 笔记本连接上wifi，但是出现黄色感叹号是怎么回事？
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2、请登陆WIFI后，打开WIFI的WAN口的连接状态。如果显示已连接，请重新启动下。检查WAN是否连接成功，获取到IP和DNS。如果WAN显示未连接或IP和DNS显示0.0.0.0，表示WAN未连接到互联网。
3、如果显示未连接，请检查连接设置。也可以重新初始化WIFI，重新设置。
绛旓細command+w灏辨槸鍏抽棴锛屽氨鐩稿綋浜庝綘鐐归偅涓爣绛剧殑灏忓弶鍙
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