I recently purchased a new rMBP. After finishing transferring all my files from my old computer I noticed the wifi would always say I'm connected, however when using it it would go in and out or run really slowly. I did some research and changed the router channel from Automatic to 6 or 11 I believe. This seemed to fix things. A week later today however I encountered some of the same problems for a short time where things were running slowly or not working at all. The other devices in my house seem to be working fine so I don't think it's my ISP. So to me it's either got to be the router or my laptop. Does anyone have experience with this?