There's an interesting archived thread here that refers to the rtl8192SU.
I think at least part of that has been overtaken by events, in that I believe that the kmod staging package for rtl8192 is now in the kernel.
If you look in the /lib/firmware folder that the thread mentions, on your machine you'll see a folder for RTL8192E, so maybe it's just a case of getting the correct firmware and putting it in the /lib/firmware folder as that thread suggests.
It might give an indication of if that is so by running the command:
to see if the rtl module is actually loading.
Don't be too concerned about the exact designation of the module. For my rtl8191SE which has recently begun to work in Fedora with the included driver, that command reports that it is using the rtl8192SE driver.
It certainly won't hurt to try putting that firmware in place. It won't break anything else.