I've got a Toshiba Satellite L25-S199, and it includes an Atheros wireless NIC based on the
AR2413 chipset, I believe. Currently I'm running OpenSUSE 11.4 on it, but I've previously had Xubuntu and Ubuntu, and this problem has always existed with WPA2.
Specifically, the LAN is a wireless WPA2 with AES encryption (no TKIP). The computer can connect to the network just fine, but the web is all but unusable; it is very finicky, mostly failing to fetch any pages, but sometimes succeeding (mostly with Google pages, and those from the local network's servers). Perhaps a DNS issue?
This problem doesn't occur with WEP or no encryption.
Here's the output of
09:04.0 Ethernet controller: Atheros Communications Inc. AR2413 802.11bg NIC (rev 01)
And the relevant output of
22: PCI 904.0: 0282 WLAN controller [Created at pci.318] Unique ID: y9sn.SufKn0XT2bB Parent ID: qscc.hTSZxA6Z5F6 SysFS ID: /devices/pci0000:00/0000:00:14.4/0000:09:04.0 SysFS BusID: 0000:09:04.0 Hardware Class: network Model: "Atheros AR2413 802.11bg NIC" Vendor: pci 0x168c "Atheros Communications Inc." Device: pci 0x001a "AR2413 802.11bg NIC" SubVendor: pci 0x144f "Askey Computer Corp." SubDevice: pci 0x7094 Revision: 0x01 Driver: "ath5k" Driver Modules: "ath5k" Device File: wlan0 Features: WLAN Memory Range: 0xc0200000-0xc020ffff (rw,non-prefetchable) IRQ: 22 (80837 events) HW Address: 00:11:f5:84:2d:c4 Link detected: yes WLAN channels: 1 2 3 4 5 6 7 8 9 10 11 WLAN frequencies: 2.412 2.417 2.422 2.427 2.432 2.437 2.442 2.447 2.452 2.457 2.462 WLAN encryption modes: WEP40 WEP104 TKIP CCMP WLAN authentication modes: open sharedkey wpa-psk wpa-eap Module Alias: "pci:v0000168Cd0000001Asv0000144Fsd00007094bc02sc00i00" Driver Info #0: Driver Status: ath5k is active Driver Activation Cmd: "modprobe ath5k" Config Status: cfg=no, avail=yes, need=no, active=unknown Attached to: #16 (PCI bridge)