Return-path: Received: from erley.org ([97.107.129.9]:35203 "EHLO remote.erley.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750743Ab3LKHxr (ORCPT ); Wed, 11 Dec 2013 02:53:47 -0500 Message-ID: <52A819F8.1050302@erley.org> (sfid-20131211_085350_701769_75626608) Date: Wed, 11 Dec 2013 01:53:28 -0600 From: Pat Erley MIME-Version: 1.0 To: Larry Finger , Kam , linux-wireless@vger.kernel.org Subject: Re: rtl8723ae owner. References: <52A7DC0C.8090902@lwfinger.net> <52A7EB67.7090808@lwfinger.net> In-Reply-To: <52A7EB67.7090808@lwfinger.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Sender: linux-wireless-owner@vger.kernel.org List-ID: On 12/10/2013 10:34 PM, Larry Finger wrote: > On 12/10/2013 10:19 PM, Kam wrote: >> Larry Finger writes: >> >>> >>> On 12/10/2013 07:42 PM, Kam wrote: >>>> I have the rtl8723ae PCIe wifi card. I've read through the messages >>>> on the >>>> forums and experience similar issues to others who have inquired >>>> about the >>>> card. I experience sluggish connections and disconnects, I for the most >>>> can't connect to my school wifi at all. >>>> >>>> I switched my router to 'AP' today after reading through the posts >>>> here and >>>> initially the connection was faster than I've experienced thus >>>> far(since >>>> switching to linux last year), I ended up shutting down the computer >>>> eventually and after turning it back on few hours later, It was back >>>> to the >>>> slow sluggish connection. >>> >>> What does switching the router to 'AP' mean? If it was not an AP >>> before, you >>> would never have been able to connect to it. >>> >>>> I've collected all the output that I could think of and wanted to >>>> contribute >>>> it in hopes that it can assist the devs in testing/debugging the >>>> issues with >>>> the card. The text file is a little but over 800 lines, so I will >>>> post it on >>>> fpaste, if this isn't acceptable please let me know and I will >>>> repost the >>>> text in preferred format. I am about ready to smoke the beacons off >>>> this >>>> thing :P. >>> >>> One thing missing in what you posted is any messages from dmesg that >>> describe >>> the disconnects. >>> >>> The only thing I noted in your posting is that your channel is about >>> as badly >>> chosen as is possible. Wifi is not like TV. The channel spacing is 5 >>> MHz, but >>> the width for 802.11g is 20 MHz, and 802.11n is 40 MHz. If you do the >> math, your >>> choice of channel 9 overlaps *every* AP in your neighborhood. At -60 >>> dBm, >> your >>> signal is not strong, and is even weaker than Home2. >>> >>> I would choose a channel as low as possible. That would be #1 for >>> 802.11g. >> Your >>> AP may not allow lower than #3 for 802.11n. >>> >>> Next, you might try loading the module with the option "ips=0". That >>> will >>> disable power save mode, and it might help. >>> >>> I have been running a long-term test of rtl8723ae. After 100 hours, I >>> have >> had a >>> total of 11 disconnects. Each of them has reconnected with very little >>> interruption in service. The difference is that my channel is chosen to >> have as >>> little interference as possible, and my signal strength is -44 dBm. >>> >>> Larry >>> >>> -- >>> To unsubscribe from this list: send the line "unsubscribe >>> linux-wireless" in >>> the body of a message to majordomo@... >>> More majordomo info at http://vger.kernel.org/majordomo-info.html >>> >>> >> >> >> >> Thank you for the prompt response, I really appreciate it. And I would >> like >> to apologize ahead of time in case I mess up the format. >> >>> What does switching the router to 'AP' mean? If it was not an AP >>> before, you >>> would never have been able to connect to it. >> >> Unfortunately my router has a check box under Advanced > Advanced Setup > >> Wireless Settings that switches the router to AP Mode. I looked into the >> manual after seeing the posting here and it's how I discovered it. It was >> never checked until today. >> >>> From the manual: >> "AP Mode. You can make the WNDR3400v2 function as an access point." >> Page 77: >> http://www.downloads.netgear.com/files/GDC/WNDR3400V2/WNDR3400v2_UM_23JAN2013.pdf >> > > I also have a WNDR3400V2, which has been functional as a 2.4/5 GHz AP > for the two years that I have owned it, and that box has never been > checked. I have no idea what might be its effect, but it certainly was > an AP before you checked that box. I believe (had a similar wndr device) that it has something to do with the way the device bridges wifi to the lan/wan. On mine, with it checked, I was able to use the device as a stand alone AP rather than an AP/Router. Trying to do that without it checked enabled some additional firewalling on the lan/wifi bridge. > >>> The only thing I noted in your posting is that your channel is about >>> as badly >>> chosen as is possible. >> >> Channel selection isn't done by me, it is set to "auto" mode at the >> router >> settings which explains that it will choose the best channel. I >> appreciate >> you pointing that out because now it will give me more options to play >> around with. I have seen the ips posting else where and will test this >> once >> I configure the channel. Thank you. > > I never select the auto channel selection. You never know what strong > sources in your neighborhood might be off when it makes the choice. > > Larry > > -- > To unsubscribe from this list: send the line "unsubscribe > linux-wireless" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html