I have a aironet 1230 B and he is dropping clients and i´ve found that he is only dropping AP´s in client mode and only the D-link 900+ ,there are other D-link Ap in client mode and don´t have this problem .
I've disabled the aironet extensions ,and increased the packet retries ,but it's not stable ,he dropps the 900+.
This clients have -72 dbm 88% signal quality.
If some one has any Aironet with D-link 900+ as clients and had a simillar please leave reply.
To the best of my knowledge, the behaviour of AP will differ from one vendor to another vendor.
This document provides a sample configuration that shows how to set up a basic wireless LAN (WLAN) connection with the use of a Cisco Aironet Access Point (AP) and computers with Cisco-compatible client adapters. The example uses the GUI.