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Overly wide channels increase contention and limit channel reuse. That does not establish too many devices contend for the same radio channel.

Both link ends disagree on duplex operation. That does not establish too many devices contend for the same radio channel.

The slowest shared link limits end-to-end throughput. That does not establish too many devices contend for the same radio channel.

Applying supported QoS queueing and validating buffering for real-time traffic would not address the need for reposition APs or add surveyed coverage with suitable antenna placement.

Reduce channel widths and replan nonoverlapping cells as needed would not address the need for reposition APs or add surveyed coverage with suitable antenna placement.

Survey spectrum and change channel or move affected clients to suitable 5GHz would not address the need for reposition APs or add surveyed coverage with suitable antenna placement.

Measure building-wide throughput and channel busy time. That check cannot demonstrate map RSSI and retry rates at the worst aisles.

Measure RTP interarrival jitter and call quality under load. That check cannot demonstrate map RSSI and retry rates at the worst aisles.

Compare channel utilization and airtime wait after retuning. That check cannot demonstrate map RSSI and retry rates at the worst aisles.

An intermittent 2.4GHz interferer disrupts radio reception. That does not establish the defined inbound-versus-return session policy.

VoIP is sensitive to variation in delay even without full link saturation. The missing change involves coverage and obstacle loss leave clients below reliable signal levels.

Overly wide channels increase contention and limit channel reuse. That does not establish the defined inbound-versus-return session policy.

Applying supported QoS queueing and validating buffering for real-time traffic would not optimize AP power, coverage overlap and supported roaming settings.

Prioritizing latency-sensitive flows and managing capacity or scheduled bulk transfers would not optimize AP power, coverage overlap and supported roaming settings.

Replan AP channels and steer capable clients to less-contended bands would not optimize AP power, coverage overlap and supported roaming settings.

Measure RTP interarrival jitter and call quality under load. That check cannot demonstrate walk a controlled path and record handoff timings and BSSIDs.

An HTTP 404 after a successful TCP connection indicates an application resource or path mismatch. That check cannot demonstrate walk a controlled path and record handoff timings and BSSIDs.

An HTTP 404 after a successful TCP connection indicates an application resource or path mismatch. Verification of this result involves walk a controlled path and record handoff timings and BSSIDs.

VoIP is sensitive to variation in delay even without full link saturation. The missing change involves client roaming thresholds and RF cell overlaps are poorly tuned.

The traffic rate exceeds available queue and link capacity. That does not establish client roaming thresholds and RF cell overlaps are poorly tuned.

Microbursts overwhelm small queues even with low interval averages. That does not establish client roaming thresholds and RF cell overlaps are poorly tuned.

Survey spectrum and change channel or move affected clients to suitable 5GHz would not address the need for reduce channel widths and replan nonoverlapping cells as needed.

Replan AP channels and steer capable clients to less-contended bands would not address the need for reduce channel widths and replan nonoverlapping cells as needed.

Upgrade or rebalance the constrained link after validating demand would not address the need for reduce channel widths and replan nonoverlapping cells as needed.

Correlate spectrum spikes with retry rates before and after mitigation.

Compare channel utilization and airtime wait after retuning. It does not measure building-wide throughput and channel busy time.

An HTTP 404 after a successful TCP connection indicates an application resource or path mismatch. It does not measure building-wide throughput and channel busy time.

Replan AP channels and steer capable clients to less-contended bands would not configure mutually compatible duplex and negotiation at both interfaces.

Applying suitable queue management and bandwidth shaping at the egress bottleneck would not configure mutually compatible duplex and negotiation at both interfaces.

Reduce channel widths and replan nonoverlapping cells as needed would not configure mutually compatible duplex and negotiation at both interfaces.

Lower loaded RTT validates active queue management. That check cannot demonstrate the current HTTP endpoint and expected application response.

Compare channel utilization and airtime wait after retuning. That check cannot demonstrate the current HTTP endpoint and expected application response.

Correlate spectrum spikes with retry rates before and after mitigation. That check cannot demonstrate the current HTTP endpoint and expected application response.