I have a big problem with ip phone 7921 and HP wireless System. My phones connect correctly to the wireless lan for 5-10 minutes , after that they start to loose connection with network. If I ping continuosly ip phone , after first 5 - 10 minutes where I have always reply and rount trip time about 250ms , round-trip time increase until to 3000ms and i have a lot of no reply. So phones continually disconnect from call Manager. I have tried my phones under a cisco AP and then they work well. Also I have used PC connected via wireless , using same setting as ip phones under HP Radio Port and also they work well. So i think is compatibility problem.
Anyone have any ideas?