[27380] in resnet
Re: Trouble with Wireless Cards
daemon@ATHENA.MIT.EDU (Barber, Matt)
Tue Feb 28 10:01:23 2012
Content-Language: en-US
Content-Type: multipart/alternative; boundary="_000_C341C07FB9D49343842DE8D8B70F4ECB26FC47CCECMAIL1csntprod_"
MIME-Version: 1.0
Message-ID: <C341C07FB9D49343842DE8D8B70F4ECB26FC47CCEC@MAIL1.csntprod.morrisville.edu>
Date: Tue, 28 Feb 2012 10:00:44 -0500
Reply-To: Resnet Forum <RESNET-L@listserv.nd.edu>
From: "Barber, Matt" <barbermj@MORRISVILLE.EDU>
To: RESNET-L@listserv.nd.edu
In-Reply-To: <B3C0241889401F4AB97A55E980BABBA00134598F8BF2@EXV01.wcu.edu>
--_000_C341C07FB9D49343842DE8D8B70F4ECB26FC47CCECMAIL1csntprod_
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
Hi Andy,
The Intel 4965s were somewhat problematic at first, but they were much bett=
er after updating drivers. I think it was version 13 that finally made them=
behave okay, if I am remembering correctly. We also made a point of turnin=
g off power management settings in Windows for these adapters. They seemed =
to perform very poorly when the options were turned on.
We did have some Realtek cards that were single-stream 11n adapters. They w=
ould not connect to a network that had the upper half of the MCS data rates=
(8-15) set as "base" rates on our controllers. We ended up setting all of =
the MCS data rates as supported, but not requiring clients to support any o=
f them. That seemed to fix things for many of these really cheap 11n adapte=
rs.
Take care,
Matt Barber '06
Network and Systems Manager
Morrisville State College
315-684-6053
From: Resnet Forum [mailto:RESNET-L@LISTSERV.ND.EDU] On Behalf Of Andy Voel=
ker
Sent: Tuesday, February 28, 2012 9:51 AM
To: RESNET-L@LISTSERV.ND.EDU
Subject: Trouble with Wireless Cards
Has anyone seen various wireless cards that just WILL NOT connect to your w=
ireless network? Usually these are cheap cards with very few driver option=
s. Still, no matter what we do, it just won't work. Yet, they can get on =
at Starbucks and at home, so it must be our fault! These cards include:
Realtek 8188CE and 8191C (won't connect at all)
Intel Centrino Wireless-N 1030 and 4965 (won't connect in N or A modes, onl=
y B/G)
Ralink 802.11n Wireless LAN Card (won't connect at all)
We have a 40MHz beamwidth on our network, which several cards default to a =
20MHz. Fixing this usually helps, but not in the case of the Intel. The o=
ther cards listed don't have this option in the driver. I haven't tested s=
etting out network to a 20 MHz yet, so that may be a first step toward comp=
atibility.
-- Andy Voelker
Manager of Student Computing in the Technology Commons
Western Carolina University
Be sure to check out the WCU TechTips Podcast at http://www.youtube.com/Wes=
ternCarolinaU!!
Check the status of your IT requests at any time at http://help.wcu.edu/ !
___________________________________________________ You are subscribed to t=
he ResNet-L mailing list.
To subscribe, unsubscribe or search the archives, go to http://LISTSERV.ND.=
EDU/archives/resnet-l.html ________________________________________________=
___
___________________________________________________
You are subscribed to the ResNet-L mailing list.
To subscribe, unsubscribe or search the archives,
go to http://LISTSERV.ND.EDU/archives/resnet-l.html
___________________________________________________
--_000_C341C07FB9D49343842DE8D8B70F4ECB26FC47CCECMAIL1csntprod_
Content-Type: text/html; charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
<html xmlns:v=3D"urn:schemas-microsoft-com:vml" xmlns:o=3D"urn:schemas-micr=
osoft-com:office:office" xmlns:w=3D"urn:schemas-microsoft-com:office:word" =
xmlns:x=3D"urn:schemas-microsoft-com:office:excel" xmlns:p=3D"urn:schemas-m=
icrosoft-com:office:powerpoint" xmlns:a=3D"urn:schemas-microsoft-com:office=
:access" xmlns:dt=3D"uuid:C2F41010-65B3-11d1-A29F-00AA00C14882" xmlns:s=3D"=
uuid:BDC6E3F0-6DA3-11d1-A2A3-00AA00C14882" xmlns:rs=3D"urn:schemas-microsof=
t-com:rowset" xmlns:z=3D"#RowsetSchema" xmlns:b=3D"urn:schemas-microsoft-co=
m:office:publisher" xmlns:ss=3D"urn:schemas-microsoft-com:office:spreadshee=
t" xmlns:c=3D"urn:schemas-microsoft-com:office:component:spreadsheet" xmlns=
:odc=3D"urn:schemas-microsoft-com:office:odc" xmlns:oa=3D"urn:schemas-micro=
soft-com:office:activation" xmlns:html=3D"http://www.w3.org/TR/REC-html40" =
xmlns:q=3D"http://schemas.xmlsoap.org/soap/envelope/" xmlns:rtc=3D"http://m=
icrosoft.com/officenet/conferencing" xmlns:D=3D"DAV:" xmlns:Repl=3D"http://=
schemas.microsoft.com/repl/" xmlns:mt=3D"http://schemas.microsoft.com/share=
point/soap/meetings/" xmlns:x2=3D"http://schemas.microsoft.com/office/excel=
/2003/xml" xmlns:ppda=3D"http://www.passport.com/NameSpace.xsd" xmlns:ois=
=3D"http://schemas.microsoft.com/sharepoint/soap/ois/" xmlns:dir=3D"http://=
schemas.microsoft.com/sharepoint/soap/directory/" xmlns:ds=3D"http://www.w3=
.org/2000/09/xmldsig#" xmlns:dsp=3D"http://schemas.microsoft.com/sharepoint=
/dsp" xmlns:udc=3D"http://schemas.microsoft.com/data/udc" xmlns:xsd=3D"http=
://www.w3.org/2001/XMLSchema" xmlns:sub=3D"http://schemas.microsoft.com/sha=
repoint/soap/2002/1/alerts/" xmlns:ec=3D"http://www.w3.org/2001/04/xmlenc#"=
xmlns:sp=3D"http://schemas.microsoft.com/sharepoint/" xmlns:sps=3D"http://=
schemas.microsoft.com/sharepoint/soap/" xmlns:xsi=3D"http://www.w3.org/2001=
/XMLSchema-instance" xmlns:udcs=3D"http://schemas.microsoft.com/data/udc/so=
ap" xmlns:udcxf=3D"http://schemas.microsoft.com/data/udc/xmlfile" xmlns:udc=
p2p=3D"http://schemas.microsoft.com/data/udc/parttopart" xmlns:wf=3D"http:/=
/schemas.microsoft.com/sharepoint/soap/workflow/" xmlns:dsss=3D"http://sche=
mas.microsoft.com/office/2006/digsig-setup" xmlns:dssi=3D"http://schemas.mi=
crosoft.com/office/2006/digsig" xmlns:mdssi=3D"http://schemas.openxmlformat=
s.org/package/2006/digital-signature" xmlns:mver=3D"http://schemas.openxmlf=
ormats.org/markup-compatibility/2006" xmlns:m=3D"http://schemas.microsoft.c=
om/office/2004/12/omml" xmlns:mrels=3D"http://schemas.openxmlformats.org/pa=
ckage/2006/relationships" xmlns:spwp=3D"http://microsoft.com/sharepoint/web=
partpages" xmlns:ex12t=3D"http://schemas.microsoft.com/exchange/services/20=
06/types" xmlns:ex12m=3D"http://schemas.microsoft.com/exchange/services/200=
6/messages" xmlns:pptsl=3D"http://schemas.microsoft.com/sharepoint/soap/Sli=
deLibrary/" xmlns:spsl=3D"http://microsoft.com/webservices/SharePointPortal=
Server/PublishedLinksService" xmlns:Z=3D"urn:schemas-microsoft-com:" xmlns:=
st=3D"" xmlns=3D"http://www.w3.org/TR/REC-html40"><head><META HTTP-EQUI=
V=3D"Content-Type" CONTENT=3D"text/html; charset=3Dus-ascii"><meta name=3DG=
enerator content=3D"Microsoft Word 14 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
@font-face
{font-family:"Microsoft Sans Serif";
panose-1:2 11 6 4 2 2 2 2 2 4;}
@font-face
{font-family:TimesNewRomanPSMT;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p
{mso-style-priority:99;
mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
span.EmailStyle17
{mso-style-type:personal;
font-family:"Calibri","sans-serif";
color:windowtext;}
span.EmailStyle19
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext=3D"edit" spidmax=3D"1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext=3D"edit">
<o:idmap v:ext=3D"edit" data=3D"1" />
</o:shapelayout></xml><![endif]--></head><body lang=3DEN-US link=3Dblue vli=
nk=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span style=3D'c=
olor:#1F497D'>Hi Andy,<o:p></o:p></span></p><p class=3DMsoNormal><span styl=
e=3D'color:#1F497D'><o:p> </o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>The Intel 4965s were somewhat problematic at first,=
but they were much better after updating drivers. I think it was version 1=
3 that finally made them behave okay, if I am remembering correctly. We als=
o made a point of turning off power management settings in Windows for thes=
e adapters. They seemed to perform very poorly when the options were turned=
on. <o:p></o:p></span></p><p class=3DMsoNormal><span style=3D'color:#1F497=
D'><o:p> </o:p></span></p><p class=3DMsoNormal><span style=3D'color:#1=
F497D'>We did have some Realtek cards that were single-stream 11n adapters.=
They would not connect to a network that had the upper half of the MCS dat=
a rates (8-15) set as “base” rates on our controllers. We ended=
up setting all of the MCS data rates as supported, but not requiring clien=
ts to support any of them. That seemed to fix things for many of these real=
ly cheap 11n adapters.<o:p></o:p></span></p><p class=3DMsoNormal><span styl=
e=3D'color:#1F497D'><o:p> </o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>Take care,<o:p></o:p></span></p><p class=3DMsoNorma=
l><span style=3D'color:#1F497D'><o:p> </o:p></span></p><div><p class=
=3DMsoNormal><b><span style=3D'font-size:10.0pt;font-family:"Arial","sans-s=
erif";color:#1F497D'>Matt Barber ‘06</span></b><span style=3D'font-si=
ze:12.0pt;font-family:"Times New Roman","serif";color:#1F497D'><o:p></o:p><=
/span></p><p class=3DMsoNormal><span style=3D'font-size:10.0pt;font-family:=
"Arial","sans-serif";color:#1F497D'>Network and Systems Manager</span><span=
style=3D'color:#1F497D'><o:p></o:p></span></p><p class=3DMsoNormal><span s=
tyle=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D'>Mo=
rrisville State College</span><span style=3D'color:#1F497D'><o:p></o:p></sp=
an></p><p class=3DMsoNormal><span style=3D'font-size:10.0pt;font-family:"Ar=
ial","sans-serif";color:#1F497D'>315-684-6053</span><span style=3D'color:#1=
F497D'><o:p></o:p></span></p></div><p class=3DMsoNormal><span style=3D'colo=
r:#1F497D'><o:p> </o:p></span></p><div><div style=3D'border:none;borde=
r-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=3DMsoNormal><=
b><span style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:<=
/span></b><span style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"=
'> Resnet Forum [mailto:RESNET-L@LISTSERV.ND.EDU] <b>On Behalf Of </b>Andy =
Voelker<br><b>Sent:</b> Tuesday, February 28, 2012 9:51 AM<br><b>To:</b> RE=
SNET-L@LISTSERV.ND.EDU<br><b>Subject:</b> Trouble with Wireless Cards<o:p><=
/o:p></span></p></div></div><p class=3DMsoNormal><o:p> </o:p></p><p cl=
ass=3DMsoNormal>Has anyone seen various wireless cards that just WILL NOT c=
onnect to your wireless network? Usually these are cheap cards with v=
ery few driver options. Still, no matter what we do, it just won̵=
7;t work. Yet, they can get on at Starbucks and at home, so it must b=
e our fault! These cards include:<o:p></o:p></p><p class=3DMsoNormal>=
<o:p> </o:p></p><p class=3DMsoNormal><span style=3D'font-size:8.0pt;fo=
nt-family:"Microsoft Sans Serif","sans-serif"'>Realtek 8188CE and 8191C (wo=
n’t connect at all)<o:p></o:p></span></p><p class=3DMsoNormal><span s=
tyle=3D'font-size:9.0pt;font-family:TimesNewRomanPSMT;color:#555555;backgro=
und:white'>Intel Centrino Wireless-N 1030 and </span><span style=3D'font-si=
ze:8.0pt;font-family:"Microsoft Sans Serif","sans-serif"'>4965 </span><span=
style=3D'font-size:9.0pt;font-family:TimesNewRomanPSMT;color:#555555;backg=
round:white'>(won’t connect in N or A modes, only B/G)</span><span st=
yle=3D'font-size:8.0pt;font-family:"Microsoft Sans Serif","sans-serif"'><o:=
p></o:p></span></p><p class=3DMsoNormal><span style=3D'font-size:8.0pt;font=
-family:"Microsoft Sans Serif","sans-serif"'>Ralink 802.11n Wireless LAN Ca=
rd (won’t connect at all)<o:p></o:p></span></p><p class=3DMsoNormal><=
span style=3D'font-size:8.0pt;font-family:"Microsoft Sans Serif","sans-seri=
f"'><o:p> </o:p></span></p><p class=3DMsoNormal><span style=3D'font-si=
ze:8.0pt;font-family:"Microsoft Sans Serif","sans-serif"'><o:p> </o:p>=
</span></p><p class=3DMsoNormal>We have a 40MHz beamwidth on our network, w=
hich several cards default to a 20MHz. Fixing this usually helps, but=
not in the case of the Intel. The other cards listed don’t hav=
e this option in the driver. I haven’t tested setting out netwo=
rk to a 20 MHz yet, so that may be a first step toward compatibility.<o:p><=
/o:p></p><p class=3DMsoNormal><o:p> </o:p></p><p class=3DMsoNormal>-- =
Andy Voelker<o:p></o:p></p><p class=3DMsoNormal>Manager of Student Computin=
g in the Technology Commons<o:p></o:p></p><p class=3DMsoNormal>Western Caro=
lina University<o:p></o:p></p><p class=3DMsoNormal>Be sure to check out the=
WCU TechTips Podcast at <a href=3D"http://www.youtube.com/WesternCarolinaU=
">http://www.youtube.com/WesternCarolinaU</a>!!<o:p></o:p></p><p class=3DMs=
oNormal>Check the status of your IT requests at any time at <a href=3D"http=
://help.wcu.edu/">http://help.wcu.edu/</a> !<o:p></o:p></p><p class=3DMsoNo=
rmal><o:p> </o:p></p><p class=3DMsoNormal><span style=3D'font-size:12.=
0pt;font-family:"Times New Roman","serif"'><br clear=3Dall><o:p></o:p></spa=
n></p><p class=3DMsoNormal><span style=3D'font-size:12.0pt;font-family:"Tim=
es New Roman","serif"'>___________________________________________________ =
You are subscribed to the ResNet-L mailing list. <o:p></o:p></span></p><p>T=
o subscribe, unsubscribe or search the archives, go to <a href=3D"http://LI=
STSERV.ND.EDU/archives/resnet-l.html">http://LISTSERV.ND.EDU/archives/resne=
t-l.html</a> ___________________________________________________ <o:p></o:p=
></p></div></body></html>=
___________________________________________________
You are subscribed to the ResNet-L mailing list.
<p>
To subscribe, unsubscribe or search the archives,
go to http://LISTSERV.ND.EDU/archives/resnet-l.html
___________________________________________________
--_000_C341C07FB9D49343842DE8D8B70F4ECB26FC47CCECMAIL1csntprod_--
