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The following just worked for me:

System Preferences -> Network -> Location -> Edit Locations.. -> make a new location, call it anything and then switch to that location and click apply.

Not sure why/how it works but it did for me :)

Good Luck!

Hi
this did it for me...Thanks

;)
 
Hi, I have installed Mac OS X 10.9 Mavericks Developer Preview 1 yesterday.
I was wondering if I am the only one who has a wifi disconnection problem.
The wifi disconnects constatnly, especially on Safari, anyone had a similar problem??

Yes!!!

I've never had a problem streaming (our only TV access), until I installed Mavericks. Now, constant problems with freezing images and disconnects.
 
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