RE: [WIRELESS-LAN] Mac wireless issue

2020-10-27 Thread Anthony Croome 
The particular MAC issue we were dealing with oddly just disappeared when we 
reloaded all the WAPs in that particular building.  Leaving it at that.

The only other thing I found that could be related to Staceys original query 
was disabling firewall and vpns helped some macbook users with similar DHCP 
problems.

Anthony

From: Anthony Croome
Sent: Thursday, 15 October 2020 10:51 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: RE: [WIRELESS-LAN] Mac wireless issue

Hi Tariq

Running WLC 8540 on 8.10.130.0 code with predominately 3702/3802 WAPs.  Still 
some 3502/3602 on WISM2s with 8.5.161.0 code.  Doesn't appear to be a specific 
to a model of AP.

Anthony

From: The EDUCAUSE Wireless Issues Community Group Listserv 
mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>> 
On Behalf Of Tariq Adnan
Sent: Thursday, 15 October 2020 10:09 AM
To: 
WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>
Subject: Re: [WIRELESS-LAN] Mac wireless issue

Hi Anthony,

What code you are running on your WLC? Is the issue specific to particular 
model of APs.
We have not come across any such issue - perhaps there are not many people on 
the campus.

Thanks,

-
Cheers,

Kind regards,
Tariq Adnan

From: The EDUCAUSE Wireless Issues Community Group Listserv 
mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>> 
On Behalf Of Anthony Croome
Sent: Thursday, 15 October 2020 9:55 AM
To: 
WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>
Subject: Re: [WIRELESS-LAN] Mac wireless issue

Sharing a summary of macbook suggestions seen on the internet for poor 
performance, stuck on 2.4GHz, zoom, etc:

- delete the wifi network on macbook, add a new location and assign it the wifi 
network
- disable "Use your Apple Watch to unlock apps and your Mac"
- delete the wifi service and re-add (ie "delete the selected service")
- check/fix country code on macbook wifi interface
- doing an SMC, PRAM, and NVRAM reset
- upgrading or downgrading the firmware on the wifi card
- uninstalling/reinstalling Zoom (for zoom specific issues)

I am still waiting on feedback from affected users whether any item in the list 
made things better.  Maybe the next Cisco WLC 8540 code upgrade will help.

Anthony
QUT


From: The EDUCAUSE Wireless Issues Community Group Listserv 
mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>> 
On Behalf Of Anthony Croome
Sent: Friday, 9 October 2020 11:07 PM
To: 
WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>
Subject: Re: [WIRELESS-LAN] Mac wireless issue

We also have plenty of apple laptop users complaining about wifi performance.  
We have at least one macbook user who seems not to be able to connect to 
u-nii-1 channels and falls back to 2.4GHz.  One suggestion I read today was to 
'turn off unlock with Apple Watch and reboot'.

Anthony


From: The EDUCAUSE Wireless Issues Community Group Listserv 
mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>> 
on behalf of Jeffrey D. Sessler 
mailto:j...@scrippscollege.edu>>
Sent: Thursday, 8 October 2020 9:45 AM
To: 
WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> 
mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>>
Subject: Re: [WIRELESS-LAN] Mac wireless issue


What channels are the impacted AP's running on?



A few weeks ago I had a similar issue (Cisco wireless), My Mac laptop would 
attach to our WPA2 network no problem - auth was successful (5 GHz), but would 
never get an IP. If I walked the Mac laptop (running Catalina) into rage of 
another AP (also 5GHz), it worked perfectly. Same switch, same AP type, with 
the only difference being the channel the AP was on. I could replicate this in 
another area, where a user reported a similar issue.   I don't have my notes in 
front of me, but I believe the problematic AP's were on unni-3 channels, and 
the ones that were OK, were not.  With COVID, students remote, and work from 
home, I've not had time to go back in to the campus and really drill into it.



There had been no reported problems when our campus closed in March, and no 
changes to our wireless deployment since that date.



Jeff







From: The EDUCAUSE Wireless Issues Community Group Listserv 
mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>> 
On Behalf Of Barros, Jacob
Sent: Tuesday, October 06, 2020 12:25 PM
To: 
WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>
Subject: Re: [WIRELESS-LAN] Mac wireless issue



We are seeing oddities with macbooks as well. Our experience is similar both in 
scope and behavior, however, I am a Ruckus customer.  Any Cisco or Meraki users 
with the same issue?







[https://lh6.googleusercontent.com/ne_lTqgFJdoXUoU7gASzv0xOtDuEXE2aaf5NZNvmQ2e_NgyV_DSK_fBjBsHc5NeluIdDut6CDq9B7cQn3WHBZgFO5U9IyPePBYnuLPQ27XRP9oq2Snrkz_l8X0iU-z242JWJVv4Z]<https://urldefense.com/v3/__h

RE: [WIRELESS-LAN] Mac wireless issue

2020-10-14 Thread Anthony Croome 
Hi Tariq

Running WLC 8540 on 8.10.130.0 code with predominately 3702/3802 WAPs.  Still 
some 3502/3602 on WISM2s with 8.5.161.0 code.  Doesn't appear to be a specific 
to a model of AP.

Anthony

From: The EDUCAUSE Wireless Issues Community Group Listserv 
 On Behalf Of Tariq Adnan
Sent: Thursday, 15 October 2020 10:09 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Mac wireless issue

Hi Anthony,

What code you are running on your WLC? Is the issue specific to particular 
model of APs.
We have not come across any such issue - perhaps there are not many people on 
the campus.

Thanks,

-
Cheers,

Kind regards,
Tariq Adnan

From: The EDUCAUSE Wireless Issues Community Group Listserv 
mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>> 
On Behalf Of Anthony Croome
Sent: Thursday, 15 October 2020 9:55 AM
To: 
WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>
Subject: Re: [WIRELESS-LAN] Mac wireless issue

Sharing a summary of macbook suggestions seen on the internet for poor 
performance, stuck on 2.4GHz, zoom, etc:

- delete the wifi network on macbook, add a new location and assign it the wifi 
network
- disable "Use your Apple Watch to unlock apps and your Mac"
- delete the wifi service and re-add (ie "delete the selected service")
- check/fix country code on macbook wifi interface
- doing an SMC, PRAM, and NVRAM reset
- upgrading or downgrading the firmware on the wifi card
- uninstalling/reinstalling Zoom (for zoom specific issues)

I am still waiting on feedback from affected users whether any item in the list 
made things better.  Maybe the next Cisco WLC 8540 code upgrade will help.

Anthony
QUT


From: The EDUCAUSE Wireless Issues Community Group Listserv 
mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>> 
On Behalf Of Anthony Croome
Sent: Friday, 9 October 2020 11:07 PM
To: 
WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>
Subject: Re: [WIRELESS-LAN] Mac wireless issue

We also have plenty of apple laptop users complaining about wifi performance.  
We have at least one macbook user who seems not to be able to connect to 
u-nii-1 channels and falls back to 2.4GHz.  One suggestion I read today was to 
'turn off unlock with Apple Watch and reboot'.

Anthony


From: The EDUCAUSE Wireless Issues Community Group Listserv 
mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>> 
on behalf of Jeffrey D. Sessler 
mailto:j...@scrippscollege.edu>>
Sent: Thursday, 8 October 2020 9:45 AM
To: 
WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> 
mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>>
Subject: Re: [WIRELESS-LAN] Mac wireless issue


What channels are the impacted AP's running on?



A few weeks ago I had a similar issue (Cisco wireless), My Mac laptop would 
attach to our WPA2 network no problem - auth was successful (5 GHz), but would 
never get an IP. If I walked the Mac laptop (running Catalina) into rage of 
another AP (also 5GHz), it worked perfectly. Same switch, same AP type, with 
the only difference being the channel the AP was on. I could replicate this in 
another area, where a user reported a similar issue.   I don't have my notes in 
front of me, but I believe the problematic AP's were on unni-3 channels, and 
the ones that were OK, were not.  With COVID, students remote, and work from 
home, I've not had time to go back in to the campus and really drill into it.



There had been no reported problems when our campus closed in March, and no 
changes to our wireless deployment since that date.



Jeff







From: The EDUCAUSE Wireless Issues Community Group Listserv 
mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>> 
On Behalf Of Barros, Jacob
Sent: Tuesday, October 06, 2020 12:25 PM
To: 
WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>
Subject: Re: [WIRELESS-LAN] Mac wireless issue



We are seeing oddities with macbooks as well. Our experience is similar both in 
scope and behavior, however, I am a Ruckus customer.  Any Cisco or Meraki users 
with the same issue?







[https://lh6.googleusercontent.com/ne_lTqgFJdoXUoU7gASzv0xOtDuEXE2aaf5NZNvmQ2e_NgyV_DSK_fBjBsHc5NeluIdDut6CDq9B7cQn3WHBZgFO5U9IyPePBYnuLPQ27XRP9oq2Snrkz_l8X0iU-z242JWJVv4Z]<https://urldefense.com/v3/__https:/protect-au.mimecast.com/s/TTu8CWLVXkURwRy7sxmwxR?domain=urldefense.com__;!!NVzLfOphnbDXSw!XANOdgqz7BrYFmt5JErr3BHvYLk4XkSY2qOYwbgwCJa_mgH1hzZV7U5fqck6VYrLRg$>

Jacob Barros

Associate Director of IT, Network and Operations /

Information Security Officer | Office of Information Technology

E: barro...@grace.edu<mailto:barro...@grace.edu> | W: 574.372.5100 ext. 6178

[https://lh5.googleusercontent.com/7qgaEy3R8t0pg6-FqBft4irBB3Tn07-iqWUmhV6zOMpEbI5uO8cZ-QGJaLvBqImKUw5TiHuVJNKO7jpbZJvnqIDHN1iXBMJRLUHfWS2DWYy_oyi4x1cp3kP8s3fz-xsskqXr4Ram]<https://urldefense.com/v3/__h

RE: [WIRELESS-LAN] Mac wireless issue

2020-10-14 Thread Anthony Croome 
Sharing a summary of macbook suggestions seen on the internet for poor 
performance, stuck on 2.4GHz, zoom, etc:

- delete the wifi network on macbook, add a new location and assign it the wifi 
network
- disable "Use your Apple Watch to unlock apps and your Mac"
- delete the wifi service and re-add (ie "delete the selected service")
- check/fix country code on macbook wifi interface
- doing an SMC, PRAM, and NVRAM reset
- upgrading or downgrading the firmware on the wifi card
- uninstalling/reinstalling Zoom (for zoom specific issues)

I am still waiting on feedback from affected users whether any item in the list 
made things better.  Maybe the next Cisco WLC 8540 code upgrade will help.

Anthony
QUT


From: The EDUCAUSE Wireless Issues Community Group Listserv 
 On Behalf Of Anthony Croome
Sent: Friday, 9 October 2020 11:07 PM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Mac wireless issue

We also have plenty of apple laptop users complaining about wifi performance.  
We have at least one macbook user who seems not to be able to connect to 
u-nii-1 channels and falls back to 2.4GHz.  One suggestion I read today was to 
'turn off unlock with Apple Watch and reboot'.

Anthony


From: The EDUCAUSE Wireless Issues Community Group Listserv 
mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>> 
on behalf of Jeffrey D. Sessler 
mailto:j...@scrippscollege.edu>>
Sent: Thursday, 8 October 2020 9:45 AM
To: 
WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> 
mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>>
Subject: Re: [WIRELESS-LAN] Mac wireless issue


What channels are the impacted AP's running on?



A few weeks ago I had a similar issue (Cisco wireless), My Mac laptop would 
attach to our WPA2 network no problem - auth was successful (5 GHz), but would 
never get an IP. If I walked the Mac laptop (running Catalina) into rage of 
another AP (also 5GHz), it worked perfectly. Same switch, same AP type, with 
the only difference being the channel the AP was on. I could replicate this in 
another area, where a user reported a similar issue.   I don't have my notes in 
front of me, but I believe the problematic AP's were on unni-3 channels, and 
the ones that were OK, were not.  With COVID, students remote, and work from 
home, I've not had time to go back in to the campus and really drill into it.



There had been no reported problems when our campus closed in March, and no 
changes to our wireless deployment since that date.



Jeff







From: The EDUCAUSE Wireless Issues Community Group Listserv 
mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>> 
On Behalf Of Barros, Jacob
Sent: Tuesday, October 06, 2020 12:25 PM
To: 
WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>
Subject: Re: [WIRELESS-LAN] Mac wireless issue



We are seeing oddities with macbooks as well. Our experience is similar both in 
scope and behavior, however, I am a Ruckus customer.  Any Cisco or Meraki users 
with the same issue?







[https://lh6.googleusercontent.com/ne_lTqgFJdoXUoU7gASzv0xOtDuEXE2aaf5NZNvmQ2e_NgyV_DSK_fBjBsHc5NeluIdDut6CDq9B7cQn3WHBZgFO5U9IyPePBYnuLPQ27XRP9oq2Snrkz_l8X0iU-z242JWJVv4Z]<https://urldefense.com/v3/__https:/www.grace.edu/__;!!NVzLfOphnbDXSw!WtLUf9mzOOcEl6nS_HWafcTEyEu8ikKWAkfwBEr9tTImS3MLpsNuabXnqnYJ5uJzIg$>

Jacob Barros

Associate Director of IT, Network and Operations /

Information Security Officer | Office of Information Technology

E: barro...@grace.edu<mailto:barro...@grace.edu> | W: 574.372.5100 ext. 6178

[https://lh5.googleusercontent.com/7qgaEy3R8t0pg6-FqBft4irBB3Tn07-iqWUmhV6zOMpEbI5uO8cZ-QGJaLvBqImKUw5TiHuVJNKO7jpbZJvnqIDHN1iXBMJRLUHfWS2DWYy_oyi4x1cp3kP8s3fz-xsskqXr4Ram]<https://urldefense.com/v3/__https:/www.grace.edu/__;!!NVzLfOphnbDXSw!WtLUf9mzOOcEl6nS_HWafcTEyEu8ikKWAkfwBEr9tTImS3MLpsNuabXnqnYJ5uJzIg$>









On Tue, Oct 6, 2020 at 3:04 PM Stacey Frye 
mailto:sfry...@manhattan.edu>> wrote:

Greetings,



We are seeing a weird issue on our campus and hoping some of you may give us 
some ideas to check on.



Background: We are using Aruba wireless controllers/APs (sadly, no airwave). 
All buildings are using the same VLAN ID for the wireless subnet, but each 
building has their own subnet for wireless. All APs are configured in the same 
AP-group. We have an open wireless network and not using any NAT (public IPs 
are being given out). IPv4 only.



A lot of our Mac users, though not all, when trying to connect to wireless, 
they are able to connect to the AP, but are receiving a "No IP Address" 
message, and therefore cannot access the Internet. Once they leave this 
building and go to any other building on campus, they do not have an issue 
whatsoever.



We have tried to manually configure the IP address, but still the device is 
unable to access the Internet (cannot even ping the GW). After removing the 
Wi-

Re: [WIRELESS-LAN] Mac wireless issue

2020-10-09 Thread Anthony Croome 
We also have plenty of apple laptop users complaining about wifi performance.  
We have at least one macbook user who seems not to be able to connect to 
u-nii-1 channels and falls back to 2.4GHz.  One suggestion I read today was to 
'turn off unlock with Apple Watch and reboot'.

Anthony


From: The EDUCAUSE Wireless Issues Community Group Listserv 
 on behalf of Jeffrey D. Sessler 

Sent: Thursday, 8 October 2020 9:45 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU 
Subject: Re: [WIRELESS-LAN] Mac wireless issue


What channels are the impacted AP’s running on?



A few weeks ago I had a similar issue (Cisco wireless), My Mac laptop would 
attach to our WPA2 network no problem – auth was successful (5 GHz), but would 
never get an IP. If I walked the Mac laptop (running Catalina) into rage of 
another AP (also 5GHz), it worked perfectly. Same switch, same AP type, with 
the only difference being the channel the AP was on. I could replicate this in 
another area, where a user reported a similar issue.   I don’t have my notes in 
front of me, but I believe the problematic AP’s were on unni-3 channels, and 
the ones that were OK, were not.  With COVID, students remote, and work from 
home, I’ve not had time to go back in to the campus and really drill into it.



There had been no reported problems when our campus closed in March, and no 
changes to our wireless deployment since that date.



Jeff







From: The EDUCAUSE Wireless Issues Community Group Listserv 
 On Behalf Of Barros, Jacob
Sent: Tuesday, October 06, 2020 12:25 PM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Mac wireless issue



We are seeing oddities with macbooks as well. Our experience is similar both in 
scope and behavior, however, I am a Ruckus customer.  Any Cisco or Meraki users 
with the same issue?







[https://lh6.googleusercontent.com/ne_lTqgFJdoXUoU7gASzv0xOtDuEXE2aaf5NZNvmQ2e_NgyV_DSK_fBjBsHc5NeluIdDut6CDq9B7cQn3WHBZgFO5U9IyPePBYnuLPQ27XRP9oq2Snrkz_l8X0iU-z242JWJVv4Z]

Jacob Barros

Associate Director of IT, Network and Operations /

Information Security Officer | Office of Information Technology

E: barro...@grace.edu | W: 574.372.5100 ext. 6178

[https://lh5.googleusercontent.com/7qgaEy3R8t0pg6-FqBft4irBB3Tn07-iqWUmhV6zOMpEbI5uO8cZ-QGJaLvBqImKUw5TiHuVJNKO7jpbZJvnqIDHN1iXBMJRLUHfWS2DWYy_oyi4x1cp3kP8s3fz-xsskqXr4Ram]









On Tue, Oct 6, 2020 at 3:04 PM Stacey Frye 
mailto:sfry...@manhattan.edu>> wrote:

Greetings,



We are seeing a weird issue on our campus and hoping some of you may give us 
some ideas to check on.



Background: We are using Aruba wireless controllers/APs (sadly, no airwave). 
All buildings are using the same VLAN ID for the wireless subnet, but each 
building has their own subnet for wireless. All APs are configured in the same 
AP-group. We have an open wireless network and not using any NAT (public IPs 
are being given out). IPv4 only.



A lot of our Mac users, though not all, when trying to connect to wireless, 
they are able to connect to the AP, but are receiving a "No IP Address" 
message, and therefore cannot access the Internet. Once they leave this 
building and go to any other building on campus, they do not have an issue 
whatsoever.



We have tried to manually configure the IP address, but still the device is 
unable to access the Internet (cannot even ping the GW). After removing the 
Wi-Fi option in Network Preferences and then re-adding, the device is able to 
get an IP from DHCP server, but is still unable to pass any traffic. We have 
tried rebooting the laptop, completely removing wireless network and 
reconnecting, and have tried booting in safe mode. Nothing seems to be working. 
If we connect using an ethernet cable in the same building that we're having 
wifi trouble in, it works with no problem. Config for the wireless subnet in 
the affected building is the exact same as config in all other buildings 
(except the subnet, of course). All buildings are using the same DHCP server.



This seems to only be happening with Macs, not any Windows machines that I am 
aware of, nor do we have any problems with other Apple devices. And like I 
said, some Macs are having the issue, others are not. We only started seeing 
these problems within the last 2-3 weeks. The only difference we made in the 
affected building is giving it a larger subnet over the summer.



We are working with our Aruba SE who is reaching out to TAC for us, but wanted 
to reach out to you guys for any other possible insight or ideas. Thanks in 
advance!



Respectfully,



Stacey Frye
Network Engineer

Office of Information Technology Services (ITS)

RE: 802.11b data rates disabled?

2016-06-20 Thread Anthony Croome 
Exactly, use 24Mbs to avoid weird behaviour.

We looked at this a few years ago and found that XP could not handle management 
packets being sent at 48Mb/s or 54Mb/s despite the card connecting at 450Mb/s 
on 5GHz N or 144Mb/s on 2.4GHz N.

On 5GHz the laptop could get an IP address but could not ping it's gateway.
On 2.4GHz the laptop could get an IP, it could ping it's gateway, but it's 
performance was terrible.

What we saw from a 5GHz packet capture was the AP continuously sending RTS to 
the client but never getting any packets from the client.  On 2.4GHz it would 
reply but only after a random number of RTS were sent.  

Anthony
IT Networks
Queensland University of Australia

-Original Message-
From: The EDUCAUSE Wireless Issues Constituent Group Listserv 
[mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Jason Cook
Sent: Tuesday, 21 June 2016 11:20 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] 802.11b data rates disabled?

Yeah my understanding is that as per the standard devices are 
required(mandatory) to support 6,12,24 rates for 802.11g. So to ensure all 
devices are happy then 24 would be the right minimum, therefore you may see 
some weird behaviour.  So devices need to support that to be compliant, I'm not 
sure it means you have to use it. I'd say if your running 54 and there's no 
complaints why change.  it will be interesting to see how things go. 


We disabled 802.11b rates about 3 months back with no issues reported. We've 
left it enabled in some of our remote campuses where we use lower rates to get 
distance. 



--
Jason Cook
Technology Services
The University of Adelaide, AUSTRALIA 5005 Ph    : +61 8 8313 4800

-Original Message-
From: The EDUCAUSE Wireless Issues Constituent Group Listserv 
[mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Chuck Enfield
Sent: Tuesday, 21 June 2016 6:21 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] 802.11b data rates disabled?

Rick,

If I were brave enough to do what you've done, here's what I would worry
about:

- 802.11a/g devices are getting scarce, but I've heard rumors that there were 
802.11g devices that required a basic rate of 6, 12, or 24 Mb/s.
It's possible that there are no such devices left, that driver updates have 
eliminated the limitation, or that no such devices ever existed.
- Many client device drivers do unexpected things when connected to networks 
with unconventional settings.  For example, will clients with a marginal MCS 7 
connection probe for their next AP before their retry rate goes through the 
roof?
- We use 40Mhz channels, so reliable comm at MCS 7 requires about 28 dB SNR.  
It could be very difficult to maintain that while moving.
- Even if clients roam successfully, you'll see an increase in roaming 
activity.  Moving clients may normally hit every second or third AP along the 
way, in your case they'll probably hit every AP.  This could increase the 
overhead consumed by authentication and/or stress your AAA infrastructure.  
That said, the AAA load could be more than offset by reduced authentication 
attempts to indoor APs from outdoor passers-by.

I'm not suggesting these are reasons not to do it.  They're just things I'd 
worry about.  I'd be interested in hearing how it works out for you if you find 
the time to follow up.  

Thanks,

Chuck

-Original Message-
From: The EDUCAUSE Wireless Issues Constituent Group Listserv 
[mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Rick.Decaro
Sent: Monday, June 20, 2016 2:10 PM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] 802.11b data rates disabled?

It sound like a lot of people have already disabled the 802.11b data
rates.   That being saidwhat minimum rate is everyone using?  

We just changed ours last week from a minimum of 1Mbps to 54Mbps.   So far
we have not heard of any issues.Does anyone know what if any problems
could arise from this being set to 54Mbps?   Is there a sweet spot in
between that is better? 

Thanks,

Rick DeCaro
(636)230-1911
rick.dec...@logan.edu


-Original Message-
From: The EDUCAUSE Wireless Issues Constituent Group Listserv 
[mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Watters, John
Sent: Monday, June 20, 2016 1:01 PM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] 802.11b data rates disabled?

We have had the b rates disabled for 2 months short of 5 years. Not a single 
complaint that I am aware of.


-jcw

John WattersThe University of Alabama
Office of Information Technology
205-348-3992
 


-Original Message-
From: The EDUCAUSE Wireless Issues Constituent Group Listserv 
[mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Todd M. Hall
Sent: Monday, June 20, 2016 10:50 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: [WIRELESS-LAN] 802.11b data rates disabled?

Do you have all of the 802.11b data rates disabled?  If

RE: [WIRELESS-LAN] Self-assigned IP on Macs

2009-10-28 Thread Anthony Croome 
Update for my uni's problem.

Our engineers are 100% convinced it's a MAC OS issue.  We are not sure when the 
problem was introduced.

When it is working we see the discover, offer, ack, in the DHCP daemon logs.
Then at a random, intermittent time the DHCP daemon will decide to stop 
listening to dhcp packets being received on wireless, it logs the discover but 
not the offer. 
Wireshark is showing the offers being received but the DHCP daemon doesn't log 
them.
There is no difference in the contents of the DHCP offer when it is working vs 
when it isn't.

We are going to escalate it to Apple, as there isn't anything else we can see 
to try.

Anthony






-Original Message-
From: The EDUCAUSE Wireless Issues Constituent Group Listserv 
[mailto:wireless-...@listserv.educause.edu] On Behalf Of Lee H Badman
Sent: Friday, 16 October 2009 10:16 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Self-assigned IP on Macs

Has anyone gotten any approved  suggestions for how to deal with these Apple 
issues from Cisco, beyond just trying things that seem to sometimes help?

It is frustrating how the friendly and trouble-free Apple devices tend to be 
the least friendly and most troubling devices on the WLAN. A little bit of 
techno-irony to this:)

-Lee

From: The EDUCAUSE Wireless Issues Constituent Group Listserv 
[wireless-...@listserv.educause.edu] On Behalf Of Jeffrey Sessler 
[j...@scrippscollege.edu]
Sent: Thursday, October 15, 2009 7:56 PM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Self-assigned IP on Macs

In 6.0, the code for world-mode didn't make it into the controller, but I 
believe it's in the AP's IOS commands, so it can be toggled but takes a little 
more effort.


Jeff

 Garry Peirce  10/15/09 2:16 PM 
Perhaps I was erroneous in equating the two through a Cisco doc referencing
DTPC to world-mode.
'When you enable Dynamic Transmit Power Control (DTPC), access points add
channel and transmit power information to beacons. (On access points that
run Cisco IOS software, this feature is called world mode.)'

DTPC does appear to be CCX related, so it is likely irrelevant with regard
to the mentioned Apple/Broadcom bug.

Running 6.0.182,
'config 802.11a world-mode' is not an available option.
'config 802.11a dtpc' is.
'show 802.11a' will show the status of DTPC.

I'll inquire w/Cisco.


--




 -Original Message-
 From: The EDUCAUSE Wireless Issues Constituent Group Listserv
 [mailto:wireless-...@listserv.educause.edu] On Behalf Of Matt Grover
 Sent: Thursday, October 15, 2009 2:51 PM
 To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
 Subject: Re: [WIRELESS-LAN] Self-assigned IP on Macs

 It's under:

 show 802.11a(or b)

 -Matt

 Bob Richman wrote:
  So, how about the show command that displays the current setting?
 
  -Original Message-
  From: The EDUCAUSE Wireless Issues Constituent Group Listserv
 [mailto:wireless-...@listserv.educause.edu] On Behalf Of Matt Grover
  Sent: Thursday, October 15, 2009 1:21 PM
  To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
  Subject: Re: [WIRELESS-LAN] Self-assigned IP on Macs
 
  Actually, if you are talking about specifically world-mode it's
 under:
 
  CLI:  config 802.11a world-mode
  orconfig 802.11b world-mode
 
  -Matt
 


 --
 
 Matt Grover === University of Florida
 Sr. Network Engineer=== http://net-services.ufl.edu
 m...@ufl.edu=== Florida Lambda Rail
 (352)273-1061   === http://www.flrnet.org/
 

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RE: [WIRELESS-LAN] Self-assigned IP on Macs

2009-10-13 Thread Anthony Croome 
Hi

We are having this problem too.  Is there any new information from people?

We currently run Cisco wireless and have upgraded some locations to the new N 
standard.  

The problem appears to be isolated in the locations where we have upgraded 
but we can't be 100% sure.

It is only appearing on macs, and they claim it works in one place but not 
another.  All we can see is that it appears to be rejecting the dhcpoffer from 
the dhcp server.

We haven't tried disabling dhcp proxy as discussed earlier in this thread, but 
others have said it didn't help.

The latest temporary solution that has worked on two out of two macs is

===

All commands required at the command line:

sudo ipconfig set en1 BOOTP (case sensitive and en1 is generally the wireless 
adapter on macs but it could possibly be different?)

wait 5 seconds and then enter:

sudo ipconfig set en1 DHCP

===


Anthony Croome
QUT


-Original Message-
From: The EDUCAUSE Wireless Issues Constituent Group Listserv 
[mailto:wireless-...@listserv.educause.edu] On Behalf Of Earl Barfield
Sent: Friday, 28 August 2009 11:39 PM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Self-assigned IP on Macs

 Date:Thu, 27 Aug 2009 15:58:39 -0500
 From:Hector J Rios hr...@lsu.edu
 Subject: Self-assigned IP on Macs...
 
 Have you guys run into this issue? We run Cisco's lightweight APs on
 WiSMs running code 5.2.193. Mac will associate to our APs but just won't
 obtain an IP address. In the end it assigns itself a self-assigned IP.
 We are seeing this on a lot of new MacBooks and MacBookPros running
 10.5.8. If we associate the computer to an autonomous AP it works fine.
 If we boot it in safe mode it works fine too. Everything else it just
 fails. 

I had the same problem after ugrading from 4.2.something to 5.2.193.0.

Uncheck Enable DHCP Proxy under controller-advanced-DHCP and see if
that fixes it.  It worked for me.


-- 
Earl Barfield -- Academic  Research Tech / Information Technology
Georgia Institute of Technology, Atlanta Georgia, 30332
Internet: earl.barfi...@oit.gatech.edue...@gatech.edu

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RE: [WIRELESS-LAN] Vista DHCP and CISCO WCS/WLC

2007-05-07 Thread Anthony Croome 
We never experienced any Vista problems with DHCP and we use WCS and WISMs.  We 
use the DHCP override feature on the WLAN and point to a specific server.



-Original Message-
From: Phil Trivilino [mailto:[EMAIL PROTECTED] 
Sent: Tuesday, 8 May 2007 11:33 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Vista DHCP and CISCO WCS/WLC

Did that - The registry hack works but the enable broadcast doesn't seem to 
do a thing.  The registry change is a nearly unacceptable solution.  Easy for 
our domain PCs but not the students who are just domain users.

Thanks.

Phil

-Original Message-
From: King, Michael [mailto:[EMAIL PROTECTED]
Sent: Monday, May 07, 2007 4:02 PM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Vista DHCP and CISCO WCS/WLC

-Original Message-
I can't walk you through the config for
allowing broadcast traffic, but there was a setting to enable multicast


After you upgrade to software release 4.0.206.0, use this CLI command to 
re-enable broadcast:
config network broadcast enable

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WISMs and Peer to Peer blocking

2007-01-17 Thread Anthony Croome 
Generator Microsoft Word 11 (filtered medium) Hi

Has anyone out there had problems with peer to peer blocking on the WISMs WLAN 
controllers?

I originally enabled it on the two controllers, and I thought it worked. But 
now it doesn' t seem to be working as I can happily scan away and see other 
wireless clients and connect to their ports. It is definitely enabled, I 
checked the WCS gui, each controllers GUI and each controller CLI. And they all 
report Peer to Peer blocking is enabled.

I am running release 4.0.179.11 on the controllers.

Anthony Croome
QUT

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RE: [WIRELESS-LAN] WISMs and Peer to Peer blocking

2007-01-17 Thread Anthony Croome 
Generator Microsoft Word 11 (filtered medium) Thanks guys. That is a big ' doh' 
 for me. I hope Cisco can speed up the roadmap and fix the issue between 
controllers, or a workaround such as a filter. No wonder it worked in the 
testing phase when I only had one controller. 

Ant


From: Christopher M. Bomba [mailto:[EMAIL PROTECTED]  Sent: Thursday, 18 J
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