?
Solved

Wireless Client Disconnecting when swapping APs

Posted on 2012-03-22
5
Medium Priority
?
552 Views
Last Modified: 2012-04-10
We have semi-recently deployed a handful of Cisco AIR-AP1141N-A-K9 access points in our warehouse.  They are all configured as stand-alone APs, on non-overlapping channels.  They are all connected to the same LAN, and are configured with the same SSID settings.

We are able to connect to all of them, I have walked around with my phone ( <3 WiFi Analyzer) and can swap between them with no issues.

The trouble we are having is with the forktrucks.  Each truck has a PC mounted to it, utilizing WiFi to connect to the network.  These trucks run our Warehouse Management and Enterprise Resource Management software to track stock movements.  The specific problem is two pronged.  

The first symptom is the client-server based software disconnects, requiring a restart of the software, loosing all work-in-progress.

The second symptom is the trucks will eventually just give up on wifi, and refuse to connect to anything.  This has lasted for up to an hour.  Usually, by the time the driver parks, gets off the truck to make note of it, it has fixed itself (~5m).  Occasionally, it requires a system reboot before it will reconnect.

I have tried using a wireless bridge mounted to the outside of the trucks to attempt for any signal attenuation from the safety cage.  I have tried using the internal card (PRISM chipset).  I have tried using a Belkin USB Wifi adapter (broadcom chip).  All to no improvement.  

Is the correct answer to this problem a Cisco WLAN Controller?  Will that prevent the disconnect/reconnect issue?   Could I have too much overlap in my networks, causing the clients to hop between too many SSIDs in too short of a time?

Looking for suggestions - this has been plaguing us for months.

Thank you!
0
Comment
Question by:tholman
  • 3
  • 2
5 Comments
 
LVL 47

Expert Comment

by:Craig Beck
ID: 37754742
Can you post the config from one of the APs?
0
 

Author Comment

by:tholman
ID: 37754769
Please see attached file.
config.txt
0
 
LVL 47

Accepted Solution

by:
Craig Beck earned 2000 total points
ID: 37754799
0
 

Author Comment

by:tholman
ID: 37754821
I will read through this tonight.  Any section in particular I should focus on?
0
 
LVL 47

Expert Comment

by:Craig Beck
ID: 37754861
Start here...

http://www.cisco.com/en/US/docs/wireless/access_point/12.2_15_JA/configuration/guide/s15roamg.html#wp1051848

Go as far as the 'Enabling Layer 3 Mobility on an SSID' section.
0

Featured Post

Evaluating UTMs? Here's what you need to know!

Evaluating a UTM appliance and vendor can prove to be an overwhelming exercise.  How can you make sure that you're getting the security that your organization needs without breaking the bank? Check out our UTM Buyer's Guide for more information on what you should be looking for!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

As companies replace their old PBX phone systems with Unified IP Communications, many are finding out that legacy applications such as fax do not work well with VoIP. Fortunately, Cloud Faxing provides a cost-effective alternative that works over an…
DECT technology has become a popular standard for wireless voice communication. DECT devices are not likely to be affected by other electronic devices and signals because they operate in a separate frequency-band.
In this video we outline the Physical Segments view of NetCrunch network monitor. By following this brief how-to video, you will be able to learn how NetCrunch visualizes your network, how granular is the information collected, as well as where to f…
Monitoring a network: why having a policy is the best policy? Michael Kulchisky, MCSE, MCSA, MCP, VTSP, VSP, CCSP outlines the enormous benefits of having a policy-based approach when monitoring medium and large networks. Software utilized in this v…
Suggested Courses

571 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question