How-to improve Wi-Fi roaming

Future Wi-Fi
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User satisfaction with Wi-Fi relies in part on whether the network supports smooth handoffs between access points as users and their devices roam about, and if the APs don’t do their job well, users will complain.

The initial tendency may be to install more APs in hopes of finding an easy fix, but doing so without careful analysis can make the situation even worse. Proper roaming requires more than just good signal strength throughout coverage areas; it takes a careful balance between the coverage of each AP on both 2.4 and 5GHz bands to make roaming work right.

Understanding access-point overlap

Once connected to a particular Wi-Fi network as designated by its Service Set Identifier (SSID), Wi-Fi clients are constantly scanning in the background for other APs with the same SSID. If it finds one with a better signal, it should seamlessly connect to it and drop the previous connection, and it should do so at a point that doesn’t result in a poor experience for the end-user.

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