802.11n wireless networking supports speeds of up to 150Mbps, which is a huge improvement over older 801.11g and 802.11b equipment. However, you won’t get the maximum possible speed if any of these conditions exist:
• There are other nearby networks using radio channels that overlap your network.
• You have older Wireless-G or -B equipment on the same network as -N (perhaps an old laptop or TiVo).
• You are using the insecure WEP or WPA security protocol (perhaps because you have older equipment that doesn’t support WPA2).
• You are using the WPA2/TKIP security setting.
• Your router is not using the legal maximum transmitting power.
The following sections tell you how to fix these conditions.