Linksys PCI cards and WLC problems

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Hi,
I have Linksys
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WMP200 and WMP54G Wi-Fi PCI cards installed on PC.
My infrastructure is WLC 2106 and two APs 1231G and one 1242G.
The problem is that the cards have problem with connection to WLAN.
The broadcast SSID must be enable then the cards connect to WLAN otherwise is a problem with connection.
When the card is connected but connection is unstable and poor.
The cards have the newest firmware installed.
Has anyone encountered a similar problem?
Kamil

Hi Kamil,
Have you associated other types of clients with these AP's? If so, do they perform better?
You might want to start by checking the status of the poorly performing client on the controller while it's connected:
monitor -> clients
You'll primarily be interested in the RSSI and SNR. The other counters such as 'excessive retries' should be observed as well.
Also check the AP's radio interface stats. Check for excessive interference or channel utilization.
This is a very helpful doc that you may want to check out:
Unified Wireless Network: Troubleshoot Client Issues
http://www.cisco.com/en/US/products/ps6366/products_tech_note09186a00809d45a2.shtml
Let us know if any of this helps.

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