So with my wifi setup I normally have 2 different SSIDs, one for 2.4ghz and one for 5ghz Lately on Yosemite i've noticed that after I restart my mac pro the 5ghz SSID is no longer showing up under the wifi network list. In order for it to reappear so I can connect to it I need to trash the wifi preferences and restart. Anyone else had anything similar to this happen to them? Oh yeah I'm running a 4.1 flashed to 5.1 mac pro with the TL-WDN4800 and an Asus N66 router. Thanks for any help!