Return-path: Received: from nk11p00mm-asmtp003.mac.com ([17.158.161.2]:46101 "EHLO nk11p00mm-asmtp003.mac.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753171Ab2KAFy5 (ORCPT ); Thu, 1 Nov 2012 01:54:57 -0400 MIME-version: 1.0 Content-type: text/plain; charset=ISO-2022-JP Received: from [10.20.200.174] (p3027-ipbf5206marunouchi.tokyo.ocn.ne.jp [118.8.142.27]) by nk11p00mm-asmtp003.mac.com (Oracle Communications Messaging Server 7u4-26.01(7.0.4.26.0) 64bit (built Jul 13 2012)) with ESMTPSA id <0MCS00FWJLNJGS30@nk11p00mm-asmtp003.mac.com> for linux-wireless@vger.kernel.org; Thu, 01 Nov 2012 04:54:56 +0000 (GMT) Message-id: <509200A2.9060300@mac.com> (sfid-20121101_065514_626032_E7E12016) Date: Thu, 01 Nov 2012 13:54:58 +0900 From: Akira Nonaka To: linux-wireless@vger.kernel.org Subject: rtl8723e disconnect problem on the kernel 3.4.9. Sender: linux-wireless-owner@vger.kernel.org List-ID: Dear all, I have a problem RTl8723 wifi connection. I can connect the access point fine but exactly 10 seconds later, the connection will be lost. This is 100% reproducible. Here is the "iw event" log. --- 1351707196.317590: wlan0 (phy #0): scan started 1351707197.302943: wlan0 (phy #0): scan finished: 2412 2417 2422 2427 2432 2437 2442 2447 2452 2457 2462 2467 2472, "" 1351707210.124514: wlan0 (phy #0): scan started 1351707211.109857: wlan0 (phy #0): scan finished: 2412 2417 2422 2427 2432 2437 2442 2447 2452 2457 2462 2467 2472, "" 1351707212.091111: wlan0 (phy #0): scan started 1351707213.075847: wlan0 (phy #0): scan finished: 2412 2417 2422 2427 2432 2437 2442 2447 2452 2457 2462 2467 2472, "WHRG300N" 1351707213.125596: wlan0: new station 00:24:a5:b4:d6:28 1351707213.128086: wlan0 (phy #0): auth 00:24:a5:b4:d6:28 -> 74:e5:43:d3:83:1f status: 0: Successful [frame: b0 00 3a 01 74 e5 43 d3 83 1f 00 24 a5 b4 d6 28 00 24 a5 b4 d6 28 40 02 00 00 02 00 00 00] 1351707213.190419: wlan0 (phy #0): assoc 00:24:a5:b4:d6:28 -> 74:e5:43:d3:83:1f status: 0: Successful ... 1351707213.190577: wlan0 (phy #0): connected to 00:24:a5:b4:d6:28 1351707222.948847: wlan0: unknown event 20 1351707222.965529: wlan0 (phy #0): deauth 74:e5:43:d3:83:1f -> 00:24:a5:b4:d6:28 reason 4: Disassociated due to inactivity [frame: c0 00 00 00 00 24 a5 b4 d6 28 74 e5 43 d3 83 1f 00 24 a5 b4 d6 28 00 00 04 00] 1351707222.965603: wlan0 (phy #0): disconnected (local request) 1351707222.979348: phy #0: regulatory domain change: set to world roaming by the wireless core upon initialization request 1351707222.982223: regulatory domain change: set to JP by a user request --- Does anyone have the same problem? Can someone tell me what is "wlan0: unknown event 20"? I suspect this is the cause of the disconnection. I am no wifi expert. Where should I take look at in the source code? I am using Fedora 16 kernel 3.4.9 with some minor patches and Realktek driver provided from my vendor, "8723AE_linux_WiFimac80211_0007.0809.2012.tar.gz". And here is lspci info. 02:00.0 Network controller: Realtek Semiconductor Co., Ltd. Device 8723 Subsystem: Realtek Semiconductor Co., Ltd. Device 0726 Flags: bus master, fast devsel, latency 0, IRQ 18 I/O ports at e000 [size=256] Memory at f7b00000 (64-bit, non-prefetchable) [size=16K] Capabilities: [40] Power Management version 3 Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+ Capabilities: [70] Express Endpoint, MSI 00 Capabilities: [100] Advanced Error Reporting Capabilities: [140] Virtual Channel Capabilities: [160] Device Serial Number 01-23-87-fe-ff-4c-e0-00 Kernel driver in use: rtl8723e Kernel modules: rtl8723e I have sent the same question to the Realtek support but I also appreciate your help. Regards, -- Akira Nonaka Tokyo, Japan