I had a similar issue close to two months ago. My problem was that my router correctly sent SE as country code, but some of my neighbours routers sent GB as country code and from time to time my Air would not connect since it picked up the beacon from one my of neighbours routers. Sometimes event if connected, I still could not reach the internet. Spent a couple of weeks with Apple support and they suggested that I changed the channel of my router (an Airport Extreme Base Station) from Auto to 6 (in Auto ch 11 was used) and since then no more issues with wrong country code being configured.
找到了就这段

@guanaco 我好像看到过一篇文章说这和路由器的国家代码也有关，如果侦测到的最近的信号国家代码和系统不一样，就会变成那个路由器的国家代码。。。

<img src="http://i4.buimg.com/588926/c26a5e4d44827510.jpg" class="embedded_image">德国支持的有。如图。。。

这是修改为德国的，参考 https://apple.stackexchange.com/questions/9768/change-mac-os-x-wireless-card-country-code

终端输入
sudo perl -pi -e 's|\x81\x78\x30\x6B\x10\x00\x00\x0F\x85|\x81\x78\x30\x6B\x10\x00\x00\x90\xE9|' /System/Library/Extensions/IO80211Family.kext/Contents/PlugIns/AirPortBrcm4360.kext/Contents/MacOS/AirPortBrcm4360 && sudo touch /System/Library/Extensions/
以上以 brcm4360 网卡为例，需修改为自己的网卡

遇到过，我的是以为备份文件与手机系统版本不一致导致的

同问

测试 //http://i4.buimg.com/588926/69a6430612c46678.jpg

补图片
http://i4.buimg.com/588926/69a6430612c46678.jpg

两只手指在鼠标上滑动即可
http://ss1.sinaimg.cn/large/006u7WbNgy1ffehobgtmoj30ii0e5dh7&690

@Seraphim001 首先想说一句其实大学很多时候也并不能睡懒觉 hhh，我也主要就用来控制寝室床上的灯和桌子上面的灯。比如晚上几点钟自动开床上灯提醒我睡觉、去教学楼上课时候自动关灯这样。不过很多时候，iPhone 的定位的精度不够，我走到教学楼灯也没关。。。。。

1、配置 homebridge，然后连上 yeelight，实现 homekit 智能家具

gfw 投毒

这是一个被电话狂轰乱炸的夜晚~
ps ： iphone 接到电话是系统级别的好评！！！

什么？大清亡了？

别升系统。。。

homekit

+1s

兹瓷一下