How to Alleviate Sticky Client Issue on Cisco 9800 WLC
Short answer
B Enable Optimize Roaming to disassociate sticky clients based on their RSSI thresholds.
Question
Key Takeaways
This question tests the method to resolve sticky clients on a Cisco 9800 WLC; the common trap is confusing roaming assistance protocols (802.11k) with features that proactively force disassociation.
Sticky clients degrade wireless performance by clinging to distant access points. This page establishes that enabling Optimize Roaming on a Cisco 9800 WLC resolves the sticky client issue by proactively disassociating weak clients.
Common mistake: Choosing 802.11k because it assists roaming, but it relies on the client to initiate the roam and does not forcefully disassociate sticky clients from weak APs.
Expert Analysis
Why the Answer Is Correct
Optimize Roaming (Optimized Roaming) on the Cisco 9800 Series Wireless Controller directly addresses the sticky client issue. It monitors the RSSI of client data packets and proactively disassociates clients whose signal strength falls below a configured threshold. This forces the client to re-associate, ideally connecting to a closer access point with a stronger signal.
Why the Other Options Are Wrong
Enabling 802.11k provides neighbor reports to clients, assisting them in making better roaming decisions, but it relies on the client to initiate the roam and does not forcefully disassociate sticky clients. Enabling data RSSI to -90db merely changes a threshold but does not trigger disassociation without the Optimize Roaming feature enabled. CHDM is not the feature used to resolve sticky client problems.
Community Comment Notes
Commenters correctly identified that optimized roaming resolves the problem of sticky clients that remain associated to distant APs. As Lakshan__97 noted, "Optimized roaming resolves the problem of sticky clients that remain associated to access points that are far away". Another user pointed out that simply adjusting the data RSSI is not the solution for this specific issue.
Exam Strategy
For roaming optimization questions, distinguish between features that passively assist clients (like 802.11k neighbor reports) and features that actively force roaming (like Optimize Roaming). If the question mentions "sticky clients" or forcing disassociation, look for Optimize Roaming.
Community Votes
100% of anonymous learners picked answer B. Votes are pick records left by other test-takers — they are not the verified answer.
Discussion 3 contributions
Compiled from public community threads and reader submissions, lightly edited for clarity. Handles and vote tallies are shown as recorded, and comments reflect the views of individual contributors.
From public community threads 3
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Lakshan__97 👍 3 Answered BOptimized roaming resolves the problem of sticky clients that remain associated to access points that are far away and outbound clients that attempt to connect to a Wi-Fi network without having a stable connection. This feature disassociates clients based on the RSSI of the client data packets and data rate
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55f2ace 👍 1 Answered BA sticky client is a device that remains connected to a wireless access point (AP) even when a better AP is available
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Farhad123 👍 1 Answered BEnabling data RSSI is not a solution here
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