[27962] in resnet
Re: Newer Macs Dropping Wireless
daemon@ATHENA.MIT.EDU (Andy Voelker)
Wed Sep 19 09:57:44 2012
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Date: Wed, 19 Sep 2012 09:47:36 -0400
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From: Andy Voelker <avoelker@email.wcu.edu>
To: RESNET-L@listserv.nd.edu
In-Reply-To: <5C70BAB33349354FAE6CC32CC916CC817D451270@DAG01.providence.col>
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We used to have this issue, but it seemed to resolve itself when we put all=
4 of our wireless controllers in one big cluster. That way they can share=
a session between them and don't have to negotiate a new one depending upo=
n which access point you move to. Not sure if that's entirely related. I =
think our problem was more apparent when you moved to a new building or sec=
tion of the building. Sometimes they would drop at a standstill, but it we=
aren't having that problem anymore.
We are a WPA2-Enterprise, 802.1x, MS Radius/AD, Trapeze/Juniper campus.
-- Andy Voelker
Manager of Student Computing in the Technology Commons
WCU Staff Senator, UNC Staff Assembly
Western Carolina University
From: Resnet Forum [mailto:RESNET-L@LISTSERV.ND.EDU] On Behalf Of Rizzo, Ji=
m
Sent: Tuesday, September 18, 2012 3:22 PM
To: RESNET-L@LISTSERV.ND.EDU
Subject: Newer Macs Dropping Wireless
We've been hearing about an issue with Macs on our campus, mostly newer one=
s with Lion and above, dropping their wireless connections after an hour of=
being connected. We thought it might have been related to the lease time f=
rom our DHCP server. We had an hour lease on all wireless IP addresses. We =
have since increased it to 2 hours, but many of our students (including tho=
se who work for me) have mentioned it still drops after about an hour. If i=
t matters, we use Aruba for our wireless (though I am not really involved o=
n the network side of things, so I can't really tell you more than that).
PC's have no problems. Macs running Windows from a Boot Camp partition also=
have no problems.
Has anyone else out there seen a similar issue? If so, how did you resolve =
it?
Thanks,
Jim
--
Jim Rizzo
Helpdesk Manager
Providence College Information Technology
(401) 865-1277
AIM: JRizzoPC
http://itweb.providence.edu/helpdesk
http://selfhelp.providence.edu
Find us on Facebook!
http://www.facebook.com/ProvCollHelpDesk
Follow us on Twitter!
http://twitter.com/PCITHelpdesk
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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'f=
ont-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>We used t=
o have this issue, but it seemed to resolve itself when we put all 4 of our=
wireless controllers in one big cluster. That way they can share a s=
ession between them and don’t have to negotiate a new one depending u=
pon which access point you move to. Not sure if that’s entirely=
related. I think our problem was more apparent when you moved to a n=
ew building or section of the building. Sometimes they would drop at =
a standstill, but it we aren’t having that problem anymore.<o:p></o:p=
></span></p><p class=3DMsoNormal><span style=3D'font-size:11.0pt;font-famil=
y:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p clas=
s=3DMsoNormal><span style=3D'font-size:11.0pt;font-family:"Calibri","sans-s=
erif";color:#1F497D'>We are a WPA2-Enterprise, 802.1x, MS Radius/AD, Trapez=
e/Juniper campus.<o:p></o:p></span></p><p class=3DMsoNormal><span style=3D'=
font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p>&nb=
sp;</o:p></span></p><div><p class=3DMsoNormal><span style=3D'font-size:11.0=
pt;font-family:"Calibri","sans-serif";color:#1F497D'>-- Andy Voelker<o:p></=
o:p></span></p><p class=3DMsoNormal><span style=3D'font-size:11.0pt;font-fa=
mily:"Calibri","sans-serif";color:#1F497D'>Manager of Student Computing in =
the Technology Commons<o:p></o:p></span></p><p class=3DMsoNormal><span styl=
e=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>WCU=
Staff Senator, UNC Staff Assembly<o:p></o:p></span></p><p class=3DMsoNorma=
l><span style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:=
#1F497D'>Western Carolina University<o:p></o:p></span></p></div><p class=3D=
MsoNormal><span style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif=
";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=3DMsoNo=
rmal><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=
>Rizzo, Jim<br><b>Sent:</b> Tuesday, September 18, 2012 3:22 PM<br><b>To:</=
b> RESNET-L@LISTSERV.ND.EDU<br><b>Subject:</b> Newer Macs Dropping Wireless=
<o:p></o:p></span></p></div></div><p class=3DMsoNormal><o:p> </o:p></p=
><div><div><div><p class=3DMsoNormal><span style=3D'font-size:10.5pt;font-f=
amily:"Calibri","sans-serif";color:black'>We've been hearing about an issue=
with Macs on our campus, mostly newer ones with Lion and above, dropping t=
heir wireless connections after an hour of being connected. We thought it m=
ight have been related to the lease time from our DHCP server. We had an ho=
ur lease on all wireless IP addresses. We have since increased it to 2 hour=
s, but many of our students (including those who work for me) have mentione=
d it still drops after about an hour. If it matters, we use Aruba for our w=
ireless (though I am not really involved on the network side of things, so =
I can't really tell you more than that).<o:p></o:p></span></p></div><div><p=
class=3DMsoNormal><span style=3D'font-size:10.5pt;font-family:"Calibri","s=
ans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=3DM=
soNormal><span style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif"=
;color:black'>PC's have no problems. Macs running Windows from a Boot Camp =
partition also have no problems.<o:p></o:p></span></p></div><div><p class=
=3DMsoNormal><span style=3D'font-size:10.5pt;font-family:"Calibri","sans-se=
rif";color:black'><o:p> </o:p></span></p></div><div><p class=3DMsoNorm=
al><span style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color=
:black'>Has anyone else out there seen a similar issue? If so, how did you =
resolve it?<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span styl=
e=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'><o:p>=
</o:p></span></p></div><div><p class=3DMsoNormal><span style=3D'font-=
size:10.5pt;font-family:"Calibri","sans-serif";color:black'>Thanks,<o:p></o=
:p></span></p></div><div><p class=3DMsoNormal><span style=3D'font-size:10.5=
pt;font-family:"Calibri","sans-serif";color:black'>Jim<o:p></o:p></span></p=
></div><div><div><div><p class=3DMsoNormal><span style=3D'font-size:10.5pt;=
font-family:"Calibri","sans-serif";color:black'>-- <o:p></o:p></span><=
/p></div><div><p class=3DMsoNormal><span style=3D'font-size:10.5pt;font-fam=
ily:"Calibri","sans-serif";color:black'>Jim Rizzo<o:p></o:p></span></p></di=
v></div><div><p class=3DMsoNormal><span style=3D'font-size:10.5pt;font-fami=
ly:"Calibri","sans-serif";color:black'>Helpdesk Manager<o:p></o:p></span></=
p></div><div><p class=3DMsoNormal><span style=3D'font-size:10.5pt;font-fami=
ly:"Calibri","sans-serif";color:black'>Providence College Information Techn=
ology<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span style=3D'f=
ont-size:10.5pt;font-family:"Calibri","sans-serif";color:black'>(401) 865-1=
277<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span style=3D'fon=
t-size:10.5pt;font-family:"Calibri","sans-serif";color:black'>AIM: JRizzoPC=
<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span style=3D'font-s=
ize:10.5pt;font-family:"Calibri","sans-serif";color:black'><a href=3D"http:=
//itweb.providence.edu/helpdesk">http://itweb.providence.edu/helpdesk</a><o=
:p></o:p></span></p></div><div><p class=3DMsoNormal><span style=3D'font-siz=
e:10.5pt;font-family:"Calibri","sans-serif";color:black'><a href=3D"http://=
selfhelp.providence.edu">http://selfhelp.providence.edu</a><o:p></o:p></spa=
n></p></div><div><p class=3DMsoNormal><span style=3D'font-size:10.5pt;font-=
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