Wireless users report frequent disconnections from the wireless network. While troubleshooting a network engineer finds that after the user a disconnect, the connection re-establishes automatically wi

Question

Options

• Aincrease the AP heartbeat timeout
• Bincrease BandSelect
• Cenable coverage hole detection
• Dincrease the dynamic channel assignment interval

• A
  3% (1)
• B
  14% (5)
• C
  8% (3)
• D
  75% (27)

Explanation

Explanation

Option D is correct because the log messages show APs going down due to "Radio channel set" events, meaning Dynamic Channel Assignment (DCA) is frequently reassigning RF channels, causing APs to briefly go offline and dropping connected users. Increasing the DCA interval reduces how often these channel reassignments occur, minimizing disruptions while still allowing the network to self-optimize over time.

Why the distractors are wrong:

• A (AP heartbeat timeout): This controls how long a controller waits before marking an AP as unresponsive, but it doesn't address the root cause - the channel reassignment events triggering the disconnections.
• B (BandSelect): BandSelect steers dual-band clients toward the 5 GHz band to reduce congestion, which has nothing to do with APs cycling down due to DCA.
• C (Coverage hole detection): This feature increases AP transmit power to fill gaps in coverage, but the issue here is not a coverage gap - it's APs temporarily going offline during channel changes.

Memory Tip

Think of DCA as a construction crew - they're doing necessary work (channel optimization), but if they show up too frequently, they keep interrupting service. Increase the interval = schedule less frequent visits = fewer user disruptions. The key clue in any question is the log reason "Radio channel set."

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