I installed a SRW224P and 9 WAP54GP's for a client. For some reason the connection speed varies alot. When watching the signal strength and noise level, the signal strength stays steady, but the noise level rises and drops consistently. They are using identical HP laptops with internal Broadcom wireless cards in them. I have updated the drivers for the wireless card from HP and also updated the firmware on all of the AP's and switch. I also noticed that the CPU utilization on the switch is contantly above 50%. Is that normal? How do I determine if it is an switch vs. AP vs. laptop issue?