We have a site that uses 6 Cisco aironet 1200 access points, 4 of which are root points connected to ethernet and 2 are repeaters. Radio seems to be 802.11 G and A.
We are having issues where when a few computers are connected and browsing that everything seems to grind to a halt. This is greatly exaggerated if the computers are in the same room connecting to the same AP. Sometimes a reboot makes things better, sometimes not.
We have performed internal network speed tests at each access point and the average is around 20Mbps up and down with the repeaters giving slower performance at about 6-10Mbps.
Is it possible that these older access points can be becoming saturated with a few modern PCs streaming internet and transferring files over the network (such as a Mac backup using time machine)?
Also, when moving between access points and using skype phone over the wifi it often cuts off. Is this normal when switching APs?