解决Mac osx AirPort: Link Down on en1. Reason 8 (Disassociated because station leaving)

这个问题存在好久了，在苹果官方论坛上已经存在好长时间了，但苹果至今仍未修复此问题：
https://discussions.apple.com/thread/2142725

有人说在Network Preference -> Location 里，新添加配置，就可以了，但我没有尝试成功过。

我的版本是MBP 13 + Mac osx 10.8.5 ，从来不关机，在公司直接插网线，有时把本子的Wifi做为路由器使用，回家就直接用无线路由，不插网线。所以这个问题隔一段时间就回出现，一直没有找到解决方法，只能重新启动系统，否则就再也连接不了无线路由了，log日志如下：

May  4 15:16:16 pandora kernel[0]: wlEvent: en1 en1 Link DOWN virtIf = 0
May  4 15:16:16 pandora kernel[0]: AirPort: Link Down on en1. Reason 8 (Disassociated because station leaving).
May  4 15:16:16 pandora kernel[0]: en1::IO80211Interface::postMessage bssid changed
May  4 15:16:16 pandora kernel[0]: wlEvent: en1 en1 Link UP virtIf = 0
May  4 15:16:16 pandora kernel[0]: AirPort: Link Up on en1
May  4 15:16:16 pandora kernel[0]: en1: BSSID changed to 
May  4 15:16:16 pandora kernel[0]: en1::IO80211Interface::postMessage bssid changed
May  4 15:16:16 pandora kernel[0]: wlc_iovar_setint(auth) returned 0
May  4 15:16:16 pandora kernel[0]: wlc_iovar_setint(wpa_cap=0x0) returned 0
May  4 15:16:16 pandora kernel[0]: wlc_iovar_setint(wsec=0x4) returned 0
May  4 15:16:16 pandora kernel[0]: wlc_iovar_setint(wpa_auth=0x80) returned 0
May  4 15:16:16 pandora kernel[0]: wlEvent: en1 en1 Link DOWN virtIf = 0
May  4 15:16:16 pandora kernel[0]: AirPort: Link Down on en1. Reason 3 (Deauthenticated because station leaving).
May  4 15:16:16 pandora kernel[0]: en1: BSSID changed to
May  4 15:16:16 pandora kernel[0]: en1::IO80211Interface::postMessage bssid changed
May  4 15:16:16 pandora kernel[0]: wlEvent: en1 en1 Link UP virtIf = 0
May  4 15:16:16 pandora kernel[0]: AirPort: Link Up on en1
May  4 15:16:16 pandora kernel[0]: en1: BSSID changed to 
May  4 15:16:16 pandora kernel[0]: en1::IO80211Interface::postMessage bssid changed
May  4 15:16:16 pandora kernel[0]: AirPort_Brcm43xx::getKEY_RSC: Requesting RSC for index 1.
May  4 15:16:16 pandora kernel[0]: wlc_ioctl(WLC_GET_KEY_SEQ) returned 0
May  4 15:16:16 pandora kernel[0]: bridge0: attached with 1 suspended link-layer multicast membership(s)
May  4 15:16:16 pandora kernel[0]: bridge_attach_protocol: en1
May  4 15:16:16 pandora kernel[0]: bridge0: successfully restored 1 suspended link-layer multicast membership(s) (err=0)

最近回家后，又出现了这个问题，翻看log，看提示说是en1找不到station，en1对应的是Wifi，en0 对应的是网线口，会不会和在公司把本子当路由使有关呢，因为回家后，就从来没插过网线，这时候，就意味着Wifi的路由模式找不到en0，所以出现问题。

于是插上一根网线，和公司同样的场景，果不出所料，WiFi恢复正常。然后再拔掉网线，用Wifi连接家里的路由，Bingo！一切都正常了，终于可以不用重启系统了。