I've read about it a fair bit on the web but Mavericks has a nasty knack of causing my Wifi to disconnect when putting my Mac into sleep mode (i.e. closing the lid) if I have bluetooth turned on.. Of course, this means I'll open it back up and will have to manually select the wifi network to get it going again. So my question is, has anybody experienced this bug whilst running Yosemite? I've had Yosemite installed for a few days and haven't had this issue once, but as soon as I restart and boot into my Mavericks drive it comes back with a vengeance. Interested to find other people's experiences on this.