[27391] in resnet
Re: Trouble with Wireless Cards
daemon@ATHENA.MIT.EDU (Andy Voelker)
Tue Feb 28 14:30:21 2012
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Message-ID: <B3C0241889401F4AB97A55E980BABBA00134598F8C96@EXV01.wcu.edu>
Date: Tue, 28 Feb 2012 14:27:20 -0500
Reply-To: Resnet Forum <RESNET-L@listserv.nd.edu>
From: Andy Voelker <avoelker@email.wcu.edu>
To: RESNET-L@listserv.nd.edu
In-Reply-To: <086960B2AF09CC458C0AE60BE5D19D4818A0F38D37@ICE-MBX-6.ice.nd.edu>
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We have indeed turned off B, but that is a good point. The RAlink is a new=
er card and the Realtek's only have a few drivers and have been around for =
a few years. Still though, that's something to test. Thanks!
-- 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/ !
From: Resnet Forum [mailto:RESNET-L@LISTSERV.ND.EDU] On Behalf Of Isaac Hol=
mes
Sent: Tuesday, February 28, 2012 2:04 PM
To: RESNET-L@LISTSERV.ND.EDU
Subject: Re: Trouble with Wireless Cards
It doesn't sound like you have turned off 802.11b, but we have found some c=
ards since we turned off 'B' that will not connect to 'G' or 'N' without fi=
rst doing some discovery or negotiation on 'B' first, don't recall which on=
es off the top of my head but one was an older Intel adapter.
Isaac Holmes
Client Engineering Specialist
OIT Distributed Engineering Support
University of Notre Dame
B036 IT Center
(574) 631-3254
From: Resnet Forum [mailto:RESNET-L@LISTSERV.ND.EDU]<mailto:[mailto:RESNET-=
L@LISTSERV.ND.EDU]> On Behalf Of Andy Voelker
Sent: Tuesday, February 28, 2012 1:59 PM
To: RESNET-L@LISTSERV.ND.EDU<mailto:RESNET-L@LISTSERV.ND.EDU>
Subject: Re: Trouble with Wireless Cards
Good idea. I believe we are set to a 5.5 Mb basic data rate at most on tha=
t network, but we may be set to a 2. I'll check on that. We've tried all =
sorts of drivers on the intel card. As I recall the RaLink adapter does no=
t have options for BSS or data rate connections. It basically has two AD-H=
oc options, power management, a/b/g/n and that's about it. We've messed wi=
th them all. In the '90s WCU "strongly recommended" a 3Com wired network a=
dapter, for compatibility reasons. I'd hate to have to go back to that....=
Between that, the firmware (don't know if RaLink or Realtek even do that) a=
nd the beamwidth, I'll do some investigation. Any other ideas?
-- 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/ !
Andy,
This might sound like a shot in the dark but have you checked the manuf=
acturer's website for a firmware update by chance? I worked at a place tha=
t was a fan of Cisco cards but when we changed to the new (at the time) G a=
ccess points and we ran into connection issues. It turned out that we need=
ed a firmware update that fixed a bug in the b/g connection compatibility i=
ssue. No guarantees that the other listed vendors have anything to that de=
gree, but it is worth looking at. At least that way you can honestly say y=
ou have expended all avenues of troubleshooting.
Derek
IT
From: Resnet Forum [mailto:RESNET-L@LISTSERV.ND.EDU]<mailto:[mailto:RESNET-=
L@LISTSERV.ND.EDU]> On Behalf Of Barber, Matt
Sent: Tuesday, February 28, 2012 10:01 AM
To: RESNET-L@LISTSERV.ND.EDU<mailto:RESNET-L@LISTSERV.ND.EDU>
Subject: Re: Trouble with Wireless Cards
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]<mailto:[mailto:RESNET-=
L@LISTSERV.ND.EDU]> On Behalf Of Andy Voelker
Sent: Tuesday, February 28, 2012 9:51 AM
To: RESNET-L@LISTSERV.ND.EDU<mailto: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/ !
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</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'>We have indeed turned off B, but that is a good point. =
The RAlink is a newer card and the Realtek’s only have a few drivers =
and have been around for a few years. Still though, that’s some=
thing to test. Thanks!<o:p></o:p></span></p><p class=3DMsoNormal><spa=
n style=3D'color:#1F497D'><o:p> </o:p></span></p><div><p class=3DMsoNo=
rmal><span style=3D'color:#1F497D'>-- Andy Voelker<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>Manager of Student Computin=
g in the Technology Commons<o:p></o:p></span></p><p class=3DMsoNormal><span=
style=3D'color:#1F497D'>Western Carolina University<o:p></o:p></span></p><=
p class=3DMsoNormal><span style=3D'color:#1F497D'>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></span></p><p clas=
s=3DMsoNormal><span style=3D'color:#1F497D'>Check the status of your IT req=
uests at any time at <a href=3D"http://help.wcu.edu/">http://help.wcu.edu/<=
/a> !<o:p></o:p></span></p></div><p class=3DMsoNormal><span style=3D'color:=
#1F497D'><o:p> </o:p></span></p><div><div style=3D'border:none;border-=
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:</s=
pan></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>Isaac H=
olmes<br><b>Sent:</b> Tuesday, February 28, 2012 2:04 PM<br><b>To:</b> RESN=
ET-L@LISTSERV.ND.EDU<br><b>Subject:</b> Re: Trouble with Wireless Cards<o:p=
></o:p></span></p></div></div><p class=3DMsoNormal><o:p> </o:p></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>It doesn’t sound like=
you have turned off 802.11b, but we have found some cards since we turned =
off ‘B’ that will not connect to ‘G’ or ‘N=
217; without first doing some discovery or negotiation on ‘B’ f=
irst, don’t recall which ones off the top of my head but one was an o=
lder Intel adapter.<o:p></o:p></span></p><p class=3DMsoNormal><span style=
=3D'color:#1F497D'><o:p> </o:p></span></p><p class=3DMsoNormal><span s=
tyle=3D'color:#1F497D'><o:p> </o:p></span></p><p class=3DMsoNormal><sp=
an style=3D'color:#1F497D'>Isaac Holmes<o:p></o:p></span></p><p class=3DMso=
Normal><span style=3D'color:#1F497D'>Client Engineering Specialist <o:p></o=
:p></span></p><p class=3DMsoNormal><span style=3D'color:#1F497D'><o:p> =
;</o:p></span></p><p class=3DMsoNormal><span style=3D'color:#1F497D'>OIT Di=
stributed Engineering Support<o:p></o:p></span></p><p class=3DMsoNormal><sp=
an style=3D'color:#1F497D'>University of Notre Dame<o:p></o:p></span></p><p=
class=3DMsoNormal><span style=3D'color:#1F497D'><o:p> </o:p></span></=
p><p class=3DMsoNormal><span style=3D'color:#1F497D'>B036 IT Center<o:p></o=
:p></span></p><p class=3DMsoNormal><span style=3D'color:#1F497D'>(574) 631-=
3254<o:p></o:p></span></p><p class=3DMsoNormal><span style=3D'color:#1F497D=
'><o:p> </o:p></span></p><p class=3DMsoNormal><span style=3D'color:#1F=
497D'><o:p> </o:p></span></p><p class=3DMsoNormal><span style=3D'color=
:#1F497D'><o:p> </o:p></span></p><div><div style=3D'border:none;border=
-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 <a href=3D"mailto:[mailto:RESNET-L@LISTSERV.ND.EDU]">[mailto=
:RESNET-L@LISTSERV.ND.EDU]</a> <b>On Behalf Of </b>Andy Voelker<br><b>Sent:=
</b> Tuesday, February 28, 2012 1:59 PM<br><b>To:</b> <a href=3D"mailto:RES=
NET-L@LISTSERV.ND.EDU">RESNET-L@LISTSERV.ND.EDU</a><br><b>Subject:</b> Re: =
Trouble with Wireless Cards<o:p></o:p></span></p></div></div><p class=3DMso=
Normal><o:p> </o:p></p><p class=3DMsoNormal><span style=3D'color:#1F49=
7D'>Good idea. I believe we are set to a 5.5 Mb basic data rate at mo=
st on that network, but we may be set to a 2. I’ll check on tha=
t. We’ve tried all sorts of drivers on the intel card. As=
I recall the RaLink adapter does not have options for BSS or data rate con=
nections. It basically has two AD-Hoc options, power management, a/b/=
g/n and that’s about it. We’ve messed with them all. =
; In the ‘90s WCU “strongly recommended” a 3Com wired net=
work adapter, for compatibility reasons. I’d hate to have to go=
back to that….<o:p></o:p></span></p><p class=3DMsoNormal><span style=
=3D'color:#1F497D'><o:p> </o:p></span></p><p class=3DMsoNormal><span s=
tyle=3D'color:#1F497D'>Between that, the firmware (don’t know if RaLi=
nk or Realtek even do that) and the beamwidth, I’ll do some investiga=
tion. Any other ideas?<o:p></o:p></span></p><p class=3DMsoNormal><spa=
n style=3D'color:#1F497D'><o:p> </o:p></span></p><p class=3DMsoNormal>=
<span style=3D'color:#1F497D'>-- Andy Voelker<o:p></o:p></span></p><p class=
=3DMsoNormal><span style=3D'color:#1F497D'>Manager of Student Computing in =
the Technology Commons<o:p></o:p></span></p><p class=3DMsoNormal><span styl=
e=3D'color:#1F497D'>Western Carolina University<o:p></o:p></span></p><p cla=
ss=3DMsoNormal><span style=3D'color:#1F497D'>Be sure to check out the WCU T=
echTips Podcast at <a href=3D"http://www.youtube.com/WesternCarolinaU">http=
://www.youtube.com/WesternCarolinaU</a>!!<o:p></o:p></span></p><p class=3DM=
soNormal><span style=3D'color:#1F497D'>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></span></p><div style=3D'border:none;border-bottom:solid windowt=
ext 1.0pt;padding:0in 0in 1.0pt 0in'><p class=3DMsoNormal><span style=3D'co=
lor:#1F497D'><o:p> </o:p></span></p></div><p class=3DMsoNormal><span s=
tyle=3D'color:#1F497D'><o:p> </o:p></span></p><p class=3DMsoPlainText>=
Andy,<o:p></o:p></p><p class=3DMsoPlainText> This might s=
ound like a shot in the dark but have you checked the manufacturer's websit=
e for a firmware update by chance? I worked at a place that was a fan=
of Cisco cards but when we changed to the new (at the time) G access point=
s and we ran into connection issues. It turned out that we needed a f=
irmware update that fixed a bug in the b/g connection compatibility issue.&=
nbsp; No guarantees that the other listed vendors have anything to that deg=
ree, but it is worth looking at. At least that way you can honestly s=
ay you have expended all avenues of troubleshooting.<o:p></o:p></p><p class=
=3DMsoPlainText><o:p> </o:p></p><p class=3DMsoPlainText>Derek<o:p></o:=
p></p><p class=3DMsoPlainText>IT<o:p></o:p></p><p class=3DMsoNormal><span s=
tyle=3D'color:#1F497D'><o:p> </o:p></span></p><p class=3DMsoNormal><sp=
an style=3D'color:#1F497D'><o:p> </o:p></span></p><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-seri=
f"'> Resnet Forum <a href=3D"mailto:[mailto:RESNET-L@LISTSERV.ND.EDU]">[mai=
lto:RESNET-L@LISTSERV.ND.EDU]</a> <b>On Behalf Of </b>Barber, Matt<br><b>Se=
nt:</b> Tuesday, February 28, 2012 10:01 AM<br><b>To:</b> <a href=3D"mailto=
:RESNET-L@LISTSERV.ND.EDU">RESNET-L@LISTSERV.ND.EDU</a><br><b>Subject:</b> =
Re: Trouble with Wireless Cards<o:p></o:p></span></p><p class=3DMsoNormal><=
o:p> </o:p></p><p class=3DMsoNormal><span style=3D'color:#1F497D'>Hi A=
ndy,<o:p></o:p></span></p><p class=3DMsoNormal><span style=3D'color:#1F497D=
'><o:p> </o:p></span></p><p class=3DMsoNormal><span style=3D'color:#1F=
497D'>The Intel 4965s were somewhat problematic at first, but they were muc=
h better after updating drivers. I think it was version 13 that finally mad=
e them behave okay, if I am remembering correctly. We also made a point of =
turning off power management settings in Windows for these adapters. They s=
eemed to perform very poorly when the options were turned on. <o:p></o:p></=
span></p><p class=3DMsoNormal><span style=3D'color:#1F497D'><o:p> </o:=
p></span></p><p class=3DMsoNormal><span style=3D'color:#1F497D'>We did have=
some Realtek cards that were single-stream 11n adapters. They would not co=
nnect 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 =
of them. That seemed to fix things for many of these really cheap 11n adapt=
ers.<o:p></o:p></span></p><p class=3DMsoNormal><span style=3D'color:#1F497D=
'><o:p> </o:p></span></p><p class=3DMsoNormal><span style=3D'color:#1F=
497D'>Take care,<o:p></o:p></span></p><p class=3DMsoNormal><span style=3D'c=
olor:#1F497D'><o:p> </o:p></span></p><p class=3DMsoNormal><b><span sty=
le=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D'>Matt=
Barber ‘06</span></b><span style=3D'font-size:12.0pt;font-family:"Ti=
mes New Roman","serif";color:#1F497D'><o:p></o:p></span></p><p class=3DMsoN=
ormal><span style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";colo=
r:#1F497D'>Network and Systems Manager</span><span style=3D'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'>Morrisville State College</=
span><span style=3D'color:#1F497D'><o:p></o:p></span></p><p class=3DMsoNorm=
al><span style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:#=
1F497D'>315-684-6053</span><span style=3D'color:#1F497D'><o:p></o:p></span>=
</p><p class=3DMsoNormal><span style=3D'color:#1F497D'><o:p> </o:p></s=
pan></p><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;fon=
t-family:"Tahoma","sans-serif"'> Resnet Forum <a href=3D"mailto:[mailto:RES=
NET-L@LISTSERV.ND.EDU]">[mailto:RESNET-L@LISTSERV.ND.EDU]</a> <b>On Behalf =
Of </b>Andy Voelker<br><b>Sent:</b> Tuesday, February 28, 2012 9:51 AM<br><=
b>To:</b> <a href=3D"mailto:RESNET-L@LISTSERV.ND.EDU">RESNET-L@LISTSERV.ND.=
EDU</a><br><b>Subject:</b> Trouble with Wireless Cards<o:p></o:p></span></p=
><p class=3DMsoNormal><o:p> </o:p></p><p class=3DMsoNormal>Has anyone =
seen various wireless cards that just WILL NOT connect to your wireless net=
work? Usually these are cheap cards with very few driver options.&nbs=
p; Still, no matter what we do, it just won’t work. Yet, they c=
an get on at Starbucks and at home, so it must be our fault! These ca=
rds include:<o:p></o:p></p><p class=3DMsoNormal><o:p> </o:p></p><p cla=
ss=3DMsoNormal><span style=3D'font-size:8.0pt;font-family:"Microsoft Sans S=
erif","sans-serif"'>Realtek 8188CE and 8191C (won’t connect at all)<o=
:p></o:p></span></p><p class=3DMsoNormal><span style=3D'font-size:9.0pt;fon=
t-family:"TimesNewRomanPSMT","serif";color:#555555;background:white'>Intel =
Centrino Wireless-N 1030 and </span><span style=3D'font-size:8.0pt;font-fam=
ily:"Microsoft Sans Serif","sans-serif"'>4965 </span><span style=3D'font-si=
ze:9.0pt;font-family:"TimesNewRomanPSMT","serif";color:#555555;background:w=
hite'>(won’t connect in N or A modes, only B/G)</span><span style=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 Card (won=
’t connect at all)<o:p></o:p></span></p><p class=3DMsoNormal><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:8.0p=
t;font-family:"Microsoft Sans Serif","sans-serif"'><o:p> </o:p></span>=
</p><p class=3DMsoNormal>We have a 40MHz beamwidth on our network, which se=
veral cards default to a 20MHz. Fixing this usually helps, but not in=
the case of the Intel. The other cards listed don’t have this =
option in the driver. I haven’t tested setting out network 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 Vo=
elker<o:p></o:p></p><p class=3DMsoNormal>Manager of Student Computing in th=
e Technology Commons<o:p></o:p></p><p class=3DMsoNormal>Western Carolina Un=
iversity<o:p></o:p></p><p class=3DMsoNormal>Be sure to check out the WCU Te=
chTips Podcast at <a href=3D"http://www.youtube.com/WesternCarolinaU">http:=
//www.youtube.com/WesternCarolinaU</a>!!<o:p></o:p></p><p class=3DMsoNormal=
>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=3DMsoNormal><o=
:p> </o:p></p><p class=3DMsoNormal><span style=3D'font-size:12.0pt;fon=
t-family:"Times New Roman","serif"'><br clear=3Dall><o:p></o:p></span></p><=
p class=3DMsoNormal><span style=3D'font-size:12.0pt;font-family:"Times New =
Roman","serif"'>___________________________________________________ You are=
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