I have a student accomodation with 8 Cisco Aironet AP's with different SSID's covering 5 floors. Most of the units are in cupboards with 2 3 ft aerials which are also in cupboards. Sometimes the wifi clients lose connection and the bandwidth they receive using speedtest.net can be about .49 mbits. The internet connection is 100mbit and there are policies on the firewall that restricts each ip to 4mbits. Plugged directly into ethernet and the upload/download is 4mbits. Each AP has a dynamic ip.
I am proposing to have SSID's all the same so that the laptops can pick an AP with the best signal as they roam the building and move the antennas that are in the cupboards into the corridor so that they are more visible. Is there anything else that can be done to improve wifi signal? How many clients can an AP handle? I am using iStumbler to test the signal. Next to the unit I receive a reading of 76%, how accurate is this?