I have a TP-Link TL-WN851N wireless adapter, which is based on an Atheros device. When I attempt to connect to my WPA2 wireless network,
ifconfig wlan0 tells me that the connection is 'associated'. My computer also shows up as connected in the list on the router. However, I can not ping anything, even the router itself.
On the same system, running Linux, there are no connection problems, and running Windows, there are occasional dropped connections, but no failure to reconnect. DHCP is noticeably slow on both of these however.
After doing some debugging with people on the #freebsd channel on Freenode, I have found the following:
arp -anshows up no routes.
- If I attempt to get an IP address from DHCP, it fails. On the FreeBSD system, it shows DHCPDISCOVER, then gives an error about no DHCPOFFER. According to my router's web interface, it believes it has given the computer an IP address after this.