Wifi Yosemite issues

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when first upgraded first version of yosemite acquired dropped wifi issue. if have bluetooth turned on, wifi work short time signal lost. have installed each upgrade , still have problem. used time machine , backed macbook pro, reformatted hd,installed yosemite scratch, installed backup time machine.i still have wifi issue. did time machine backup reinstall settings causing problem? ideas or suggestions appreciated...thanks!
 

if want determine if issue yosemite , not install, create new partition, install yosemite new partition, boot new partition , don't install other basic system. once have created user, login , setup wifi , bluetooth. wifi issue still happen?

once done, boot primary partition , delete new partition.
 


Forums Macs macOS OS X Yosemite (10.10)


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