We tested one 1142 AP with 5.2.157. The AP can find the controller but failed 
to download the image with console error:

%Error opening lwapp:/c1140 (Protocol error)

TAC told me to reload the 5.2.157 code on controller. But I just unplugged the 
cable to the AP and plugged it back. Then the AP downloaded the code 
successfully. I haven't got more 1142 APs to test. Not sure if this is the same 
bug which Hector mentioned. 

Dennis Xu
Network Analyst
Computing and Communication Services
University of Guelph
5198244120 x 56217

----- Original Message -----
From: "Hector J Rios" <[email protected]>
To: [email protected]
Sent: Friday, February 20, 2009 9:08:42 AM GMT -05:00 US/Canada Eastern
Subject: [WIRELESS-LAN]




We’ve been testing 5.2. The one gotcha we found was the discovery process. If 
you are running versions below 5.2.178.0, the discovery of new APs won’t work 
unless you configure the APs manually. We ran into this issue when testing the 
new 1140s. After upgrading to 5.2.178, everything worked fine. 



Haven’t run into any other issues, yet. 



Hector Rios 

Louisiana State University 







From: The EDUCAUSE Wireless Issues Constituent Group Listserv 
[mailto:[email protected]] On Behalf Of Lee H Badman 
Sent: Thursday, February 19, 2009 8:55 PM 
To: [email protected] 
Subject: [WIRELESS-LAN] 



Given that Cisco controller 5.2 code features CAPWAP versus LWAPP in earlier 
versions, can anyone comment on any found gotchas or significant operational 
differences to be aware of (I know CAPWAP needs new ports opened on firewalls, 
for example)? I also notice that the new 1140s MUST run CAPWAP, and so 5.2 code 
is mandatory for 1140 support (maybe I knew that before, now that I write 
that). 


This one is new to me, and interesting: 
http://www.cisco.com/en/US/docs/wireless/controller/5.2/configuration/guide/c52lwap.html#wp1104685
 

-Lee 

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