I've noted a lot of problems with 5ghz wireless in my home. I don't know the root cause as of yet and so I was wondering if any of you experience the problem I'm having. It is very noticeable on my MacBook Air. I'll be using it and I'll have drop outs - the signal strength indicator is good, but the wifi performance slows to a crawl or just flat out stops. Safari stops loading pages, Mac App Store downloads stop or slow to a crawl. If I switch to the other band everything goes back to normal and it is fast again. I don't ever see any issues on the non-5ghz band. I've seen the same problem on my iPhone 5. I'm using a 4th gen Time Capsule and a 4th Gen Airport Extreme. Both with the latest firmware.