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TheClient Isolationfeature on RUCKUS access points and controllers prevents wireless clients connected to the same SSID from communicating directly with each other within the same subnet. This is particularly important for guest or public networks to enhance security and privacy. However, administrators may sometimes need to allow access to specific network services or devices—such as printers, gateways, or media servers—within that same subnet.

RUCKUS systems address this need through theIsolation Whitelistcapability. As described in theRUCKUS One Online HelpandRUCKUS Cloud documentation, theIsolation Whitelistallows administrators to specify destination IP or MAC addresses that are exempt from client isolation rules. This enables controlled access without fully disabling client isolation across the network.

Other options likedirected multicastoraccess control list (ACL)manage traffic types or filtering policies but are not specific to client-to-client communication exceptions. Therefore, theIsolation Whitelistis the correct answer.

InSmartZone, WLAN Groups define which SSIDs (WLANs) are broadcast by specific APs or AP Groups. However, for an AP Group to actually broadcast the WLANs from a WLAN Group, that WLAN Group must be explicitlyassigned to the AP Group’s radio interfaces(2.4 GHz, 5 GHz, or 6 GHz).

According toRUCKUS One Online Help – WLAN Group ConfigurationandSmartZone Administrator Guide, when an AP Group does not have a WLAN Group bound to its radios, the SSIDs in that group will not be broadcast—even if both exist within the same Zone.

Creating the WLAN Group at the Domain level or Zone level is valid, but broadcasting depends on association at the AP Group radio level.

Ahidden node problemoccurs when two or more client devices are within range of the AP butcannot hear each other, causing frame collisions that lead to degraded performance.

According toRUCKUS One Online Help – RF Interference and Hidden Node DetectionandRUCKUS AI Documentation – Airtime Efficiency Analysis, the symptoms include:

(A) Retransmissions:Frequent retries due to undetected collisions.

(D) Reduced throughput:Effective throughput decreases as airtime is wasted on retransmissions and ACK delays.

The issue is common in high-density or obstructed environments. EnablingRTS/CTSorBeamFlex+can mitigate it by improving communication coordination.

“Channel changes” occur in interference mitigation, not hidden-node detection; “Excessive roaming” and “Increased Tx power” are unrelated effects.