I suddenly started incurring some extreme performance issues while in windows 8. I've narrowed it down to the Air Port extreme/dsl modem. I'm not having any problems when I boot into OSX, only win8. I tether my phone and use that connection and its [relatively] fast. Go back onto airport extreme and its slow. Here's the result of the speed net test. OSX Windows Rebooted both the router and the airport extreme and that helped the performance a little bit. Download speed when from 0.13 to 4. Upload it was about the same. The only change that occurred was I took my computer offsite and was using it wirelessly - it was tethered to my phone. When I returned home and turned it back on bam - wicked bad throughput. Any advice would be welcome. Its some sort of driver issue with windows. I've narrowed it down that far because I reset my DLS modem, and used that instead of AE and in OSX it connects fine but in windows - same thing.