Fedora 18, kernel 3.9.4, lspci says "Intel Corporation Centrino Ultimate-N 6300 (rev 3e)." Wireless connections work fine, until it wakes from sleep. I see three "direct probes" (among other things), and then connection fails.
If I hibernate, and wake up, wireless will work fine.
Also discovered that when it wakes up from sleep, it couldn't even see the access point it was using before (according to Network Manager...or maybe it had just removed it from the list since it couldn't connect). Disabling the wireless by both software and hardware switches solved the visibility problem, but did not resolve the connection issue.
relevant /var/log/messages parts attached.
Any other information you need from me? I'll open a bug, if need be.
j