What should I pay attention to when setting up a wireless roaming network.
1) The wireless access point and the wireless client must be located in the same VLAN and the same IP address segment.
2) AP signal coverage areas should overlap each other. Otherwise, it will lead to a wireless network dead zone. That is, the distance between wireless access points should be less than the limited transmission distance of wireless access points.
3) The wireless access points must be set to the same SSID. Different SSIDs mean different wireless networks, and wireless roaming is not possible.
4) The same WEP or WPA encryption must be used. All wireless access points and clients must use the same WEP or WPA encryption, otherwise, they will not be able to establish a connection with each other. WEP and WPA are also case sensitive.
5) Wireless access points covering each other must use different or even non-adjacent channels, otherwise, it will cause serious interference and reduce the efficiency of AP communication.
Channel is the frequency band, IEEE 802.11b/g work in 2400 ~ 2 483MHz, the U.S. standard channel can be divided into 11, the European standard can be divided into 13, the Japanese standard can be divided into 14, each channel has a difference of 11MHz.
For example, channel1 is 2,412MHz, channel2 is 2,423MHz, and so on. In practice, there is no interference between channels 1,6, and 11.