just bought RMBP 13", update to 10.10.1, got wifi disconnect issue

TOP

My WiFi is working okay in both both 10.10 and 10.10.1
but I noticed the WiFi status is always saying 'Looking for Networks' even I am already connected.
I went to Apple Store and checked all the Mac models (iMac, MBP, MBA, MacMini, MacPro) running Yosemite, they ALL have the same issue! LOL

TOP