Roaming With 802.11k/v/r

What matters in practice:

• Clients decide when to roam, not the network — a phone can cling to a weak access point while a stronger one sits across the corridor.
• 802.11k, v and r each solve part of the move — neighbour reports, transition suggestions and fast handshakes, best enabled together.
• Wired backhaul makes roaming feel seamless — wireless mesh adds delay at every hop.

With several access points, a phone is supposed to move smoothly from one to the next as you walk. In practice many devices cling to a weak access point. Three standards help. Multi-access-point networks are covered from the hardware side in business-grade access points vs consumer routers.

The problem: sticky clients

Clients decide when to roam, not the network. A phone may stay attached to a distant access point even when a stronger one is nearby, giving slow speeds and dropped calls.

The three standards

802.11k (neighbour reports). The access point gives the device a list of nearby access points, so it can find the next one quickly instead of scanning everything.

802.11v (BSS transition management). The network can suggest to a device that it move to a better access point, for example when signal is weak or the current access point is overloaded.

802.11r (fast transition). Speeds up the security handshake when moving between access points, cutting the handover time to a fraction. This matters most for voice and video calls.

Settings and pitfalls

• Enable these features in your controller or router, ideally all three together.
• Use the same SSID, security type and password on every access point.
• Some older devices struggle with 802.11r, causing connection failures. If devices fail to join, disable 802.11r first and test again.
• Do not set transmit power too high. If every access point shouts at maximum power, clients see no clear reason to move.
• Use sensible minimum data rate or minimum RSSI settings, if available, to nudge clients off weak links. Make small changes and test.

Wired backhaul

Roaming works best when access points are connected by Ethernet. Wireless mesh adds delays at each hop.

Testing roaming

1. Start a video call or continuous ping on a phone.
2. Walk slowly between two access points.
3. Note when the connection hops, and whether audio or ping drops.
4. Use your controller's client log to confirm that it moved.
5. Repeat with different devices, since behaviour varies widely.

Expectations

These standards help, but the client still has the final say. Different phones and laptops roam differently, so test with the devices your staff or family actually use. Before placing any access point, walk the building as described in how to run a site survey and speed test.

Next Steps

Seamless roaming is a design job, not a checkbox. Our Networks & Infrastructure team builds multi-AP networks for hotels, offices and campuses across Uganda and tests them with real handsets.

Request a Free Site Survey if calls drop as people move between rooms.