A lot of people (including me) are suffering from dropped wifi connections. Ther...

watmough · on Nov 12, 2011

I fixed my WiFi not reconnecting by zapping my PRAM.

Cmd-Opt-P-R on boot and hold down until you get a couple of loud bongs.

Yeah! I know! First time doing that has ever fixed a damn thing for me, but not reconnecting to my WiFi was starting to become an annoyance.

This was on a new main logic board on my 2007 MBP running a fresh install of Lion 10.7.2 copied out of the Install app and burned to an 8GB USB key.

sounds · on Nov 13, 2011

Switched to a Broadcom chip and still can't resolve all the silicon-level bugs. http://wiki.debian.org/MacBook

Broadcom may make Tim Cook happier, but Atheros is more the "Steve" of wifi chips. However, the 2007 MBP uses Atheros - yours is actually a different issue.

watmough · on Nov 13, 2011

I actually made myself a Broadcom airport card, for less than $20 and it's faultless. Atheros cards have always worked great for me too.

The only time I've ever had WiFi problems is under really really old versions of Ubuntu on a ThinkPad.

I suspect a lot of problems are caused by interference, or really densely populated areas. Even out here in the boonies of North Houston, there are 8 - 10 WiFi networks visible, neighbors etc.