Return-path: Received: from mail-pb0-f51.google.com ([209.85.160.51]:45247 "EHLO mail-pb0-f51.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750814Ab3LKEev (ORCPT ); Tue, 10 Dec 2013 23:34:51 -0500 Received: by mail-pb0-f51.google.com with SMTP id up15so9202659pbc.10 for ; Tue, 10 Dec 2013 20:34:50 -0800 (PST) Message-ID: <52A7EB67.7090808@lwfinger.net> (sfid-20131211_053454_736728_84048DE5) Date: Tue, 10 Dec 2013 22:34:47 -0600 From: Larry Finger MIME-Version: 1.0 To: Kam , linux-wireless@vger.kernel.org Subject: Re: rtl8723ae owner. References: <52A7DC0C.8090902@lwfinger.net> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Sender: linux-wireless-owner@vger.kernel.org List-ID: 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. >> 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