Wireless roaming is when a wireless client (station) moves around in an area with multiple access point (AP), it may automatically switch to another AP which has better signal strength.
However, the wireless signal handover is a decision of the wireless clients, and we often find the wireless clients stick to the original connected AP which has weak wireless signal but don't roam to the AP with the stronger signal.
VigorAP provides "AP-assisted Client Roaming" which could assist the wireless clients in roaming more effectively. Network administrator could set up conditions related to RSSI or Link rate for AP to kick out the wireless clients with poor signal and help the "sticky" wireless clients transfer to the optimized connection.
1. To enable wireless roaming in the network, the APs must have the same SSID and use the same security mode and password phrase.
2. Channel on each AP does not have to be the same; actually, it is recommended to use different and non-overlapping channels for each AP to avoid interference between them.
3. After preparing the SSID, go to Wireless LAN >> Roaming and set up the parameters.
Note: You can enable Basic Rate and RSSI Requirement at the same time, AP will disconnect the wireless client once it meets one of the conditions.
Network administrator could check the wireless client information such as Link Speed and RSSI from Wireless LAN >> Station List
On Android devices, we can see the signal strength of each SSID. Go to Developer Options to enable WiFi Verbose logging. Then we can check the Wifi RSSI (-dBm).
Network administrator could also check the message "kick off" in the Diagnostics >> Syslog Explorer. It means AP had disconnected the wireless client because of AP-assisted roaming settings.
If your AP does not support AP-assisted roaming, you can try change Network adapter settings on the stations. Some wireless network adapter support Roaming-Aggressive feature, which could be found on Device Manager > Wireless network adapter (Right Click) > Properties > Advanced. The client could change Roaming-Aggressiveness value to Highest.
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