I'm having issues getting my Wifi USB adapter to work. I previously installed Mavericks on my PC via Niresh 10.9 and after seeing how well it worked I decided to create a clean install USB and reinstall OSX (Niresh comes with a lot of extra kexts and random apps and I wouldn't really feel comfortable doing anything that requires me to put in a password on it).


The USB adapter I have uses a 8191s Realtek chipset, and on the Niresh installation all I had to do with download the Mac drivers from Realtek's website (used the ML drivers as they were the latest one). No issues there, all up and running perfectly.


Now, with the clean install, after installing the drivers and wireless utility app that comes with them (using the exact same install package that previously worked on 10.9) and then restarting (as per the installation instructions), the Wireless Utility app refuses to start. I open the app and I can see the icon appear briefly in the dock before immediately disappearing again.


Things that I have tried:




  • Installing different/older versions of the driver (tried every driver available from realtek)




  • Tried modified drivers from macbreaker forums




  • Manually installing the kexts that are contained in the installer.pkg




All with multiple reboots - no dice. Still the same issue.


One thing that does stick out to me, on the Niresh install, when viewing USB devices in System Report, it listed the USB as RTL8181S Wi-Fi Adaptor, whereas with the clean 10.9.4 install it is simply listed as Miscellaneous USB device - which makes me think its an issue with a missing or unmodified kext that had already come with Niresh and I have yet to install; only thing is, I have no clue how to figure out what I'm missing. Is it a motherboard issue?


Any pointers would be great!



submitted by Jiuholar

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