Q: WiFi unusable with 300Mbps MBProRetina
I got brand new MacBook Pro Retina and noticed VERY bad Reception when connecting to an firmware updated TL-WA901N AccessPoint 30m away.
I had bad 5-20% ping to AP packet loss while my old MBPro worked fine at the same spot.
I have no neighbour networks around my home within 500m (country location).
I tried everything until I reduced Channel Width to 20MHz from 40MHz and reduced Speed from 300Mbps to 130 Mbps at the AP/Router.
Now Speed is back to 100% ADSL, browsing is fast and all problems are solved.
Any ideas what can be going on here?!? Bug? Feature?
Modifying the router settings is not something plain users can do to fix things.
I could not find a Setting on the Mac-Side to fix reception.
It cost me several working hours and a week of bad connections to fix?
MacBook Pro with Retina display, OS X Mountain Lion (10.8.2)
Posted on Nov 7, 2012 1:41 PM