Return-path: Received: from p15195424.pureserver.info ([82.165.34.74]:53667 "EHLO p15195424.pureserver.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752846Ab3IKRMo (ORCPT ); Wed, 11 Sep 2013 13:12:44 -0400 Message-ID: <5230A440.5050709@ilande.co.uk> (sfid-20130911_191248_873282_86FE86BA) Date: Wed, 11 Sep 2013 18:11:28 +0100 From: Mark Cave-Ayland MIME-Version: 1.0 To: Larry Finger CC: Dan Williams , Vincent Thiele , linux-wireless@vger.kernel.org References: <522E4315.4040806@lwfinger.net> <1378764913.31180.9.camel@dcbw.foobar.com> <1378916091.1693.21.camel@dcbw.foobar.com> <52309B75.3010408@lwfinger.net> In-Reply-To: <52309B75.3010408@lwfinger.net> Subject: Re: No connection with TP-Link TL-WN823N (rtl8192cu) Content-Type: text/plain; charset=UTF-8; format=flowed Sender: linux-wireless-owner@vger.kernel.org List-ID: On 11/09/13 17:33, Larry Finger wrote: >> So the AP is disconnecting the device a couple seconds with reason 4, >> which is "Disassociated due to inactivity". My thought is that this >> points to a driver bug (Larry?). > > Possibly, but for reference, my Edimax EW-7811Un has been running for 37 > hours. During that time, I have had no deauthentications and only 2 > instances of the "AP lost" reconnections. The latter is what I am > currently trying to fix, but at that error rate, it is difficult. I am > running the latest 3.11 kernel from wireless testing. > > The only thing I am doing that is unusual is that I am pinging my router > at a 5 second interval using the command > > ping -i5 192.168.1.1 > > It is possible that I am preventing a power save operation, which is > making a difference. Hi Larry, For comparison, what does your device report when plugged in? My device reports this: Sep 10 00:28:41 kentang kernel: [90532.399226] usb 4-1.2: new high-speed USB device number 26 using ehci-pci Sep 10 00:28:41 kentang kernel: [90532.492624] usb 4-1.2: New USB device found, idVendor=0bda, idProduct=8176 Sep 10 00:28:41 kentang kernel: [90532.492627] usb 4-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3 Sep 10 00:28:41 kentang kernel: [90532.492629] usb 4-1.2: Manufacturer: Realtek Sep 10 00:28:41 kentang kernel: [90532.492630] usb 4-1.2: SerialNumber: 00e04c000001 Sep 10 00:28:41 kentang kernel: [90532.502454] rtl8192cu: Chip version 0x10 Sep 10 00:28:42 kentang kernel: [90532.581772] rtl8192cu: MAC address: 00:0b:81:89:81:b8 Sep 10 00:28:42 kentang kernel: [90532.581776] rtl8192cu: Board Type 0 Also what type of USB port are you using? I'm plugged direct (no hub) into a ehci-pci port on a laptop if that makes a difference to power? ATB, Mark.