Hey guys...
I have a problem,
once a day (or two) my wifi on my GS3 (stock, 4.1.1, videotron) becomes slow...
I try loading something (on the web)... it's slow, then I try a Speed Test.
Result is always something like : 250 or 500 or 800 KBps
Then, the solution is : desactivate wifi, wait...