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尝试进入“后台管理” - “工具” - “故障检测工具” - 停止并启动一次“手机平板服务”
检查设备本身的Wi-Fi是否连接正常
查看桌面右下角的网络连接图标图标,检查主机本身网络是否联通正常,是否有感叹号