Hello, I get a weak signal and dropped connections with AR9485 wireless card and the ath9k driver on Ubuntu 12.10. The same device booted to Win8 has good performance along with other devices connected to the same access point.
Below are the details of my setup. If anyone can confirm that AR9485 is supported and can help me troubleshoot my issues, it would be greatly appreciated. Please also let me know if you need any more information, i.e. the rest of the dmesg output. 1. OS: Ubuntu 12.10, kernel version 3.8.4-030804 2. Loaded latest ath9k driver from https://www.kernel.org/pub/linux/kernel/projects/backports/2013/03/26/ (downloaded compat-drivers-2013-03-26-u.tar.gz) 3. lspci -nn 02:00.0 Network controller [0280]: Atheros Communications Inc. AR9485 Wireless Network Adapter [168c:0032] (rev 01) 4.iw dev wlan0 scan (roommate chosen ssid :) BSS 30:46:9a:67:e9:d7 (on wlan0) -- associated TSF: 332971938415 usec (3d, 20:29:31) freq: 2462 beacon interval: 100 capability: ESS Privacy ShortSlotTime (0x0411) signal: -87.00 dBm last seen: 1224 ms ago Information elements from Probe Response frame: SSID: CIA Supported rates: 1.0* 2.0* 5.5* 11.0* 18.0 24.0 36.0 54.0 DS Parameter set: channel 11 ERP: Barker_Preamble_Mode RSN: * Version: 1 * Group cipher: TKIP * Pairwise ciphers: CCMP TKIP * Authentication suites: PSK * Capabilities: 16-PTKSA-RC (0x000c) Extended supported rates: 6.0 9.0 12.0 48.0 WPS: * Version: 1.0 * Wi-Fi Protected Setup State: 2 (Configured) * Selected Registrar: 0x0 * Response Type: 3 (AP) * UUID: 1900f435-2062-8334-31c4-448994e5aa5c * Manufacturer: NETGEAR, Inc. * Model: WNDR3300 * Model Number: WNDR3300 * Serial Number: 01 * Primary Device Type: 6-0050f204-1 * Device name: WNDR3300 * Config methods: Label, PBC * RF Bands: 0x3 WPA: * Version: 1 * Group cipher: TKIP * Pairwise ciphers: CCMP TKIP * Authentication suites: PSK * Capabilities: 16-PTKSA-RC (0x000c) WMM: * Parameter version 1 * u-APSD * BE: CW 15-1023, AIFSN 3 * BK: CW 15-1023, AIFSN 7 * VI: CW 7-15, AIFSN 2, TXOP 3008 usec * VO: CW 3-7, AIFSN 2, TXOP 1504 usec 5. dmesg | grep wlan0 [ 21.932648] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 26.891333] wlan0: authenticate with 30:46:9a:67:e9:d7 [ 26.908968] wlan0: send auth to 30:46:9a:67:e9:d7 (try 1/3) [ 26.914636] wlan0: authenticated [ 26.918506] wlan0: associate with 30:46:9a:67:e9:d7 (try 1/3) [ 26.956682] wlan0: RX AssocResp from 30:46:9a:67:e9:d7 (capab=0x411 status=0 aid=5) [ 26.956746] wlan0: associated [ 26.956761] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 145.733016] wlan0: authenticate with 30:46:9a:67:e9:d7 [ 145.736609] wlan0: send auth to 30:46:9a:67:e9:d7 (try 1/3) [ 145.741075] wlan0: authenticated [ 145.743115] wlan0: associate with 30:46:9a:67:e9:d7 (try 1/3) [ 145.747366] wlan0: RX AssocResp from 30:46:9a:67:e9:d7 (capab=0x411 status=0 aid=1) [ 145.747522] wlan0: associated 6. dmesg | grep ath9k [ 19.668649] ieee80211 phy0: Selected rate control algorithm 'ath9k_rate_control' Thanks, Ilya
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