Wireless connectivity, roaming and RF troubleshooting

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By the end you’ll be able to

Troubleshoot wireless client connectivity by evaluating SSID visibility, association state, authentication success, DHCP acquisition, IP configuration and captive portal or policy effects where applicable.
Diagnose RF and coverage issues using signal strength, signal-to-noise ratio, channel utilization and interference symptoms to distinguish weak signal, attenuation, non-Wi-Fi interference, co-channel interference and adjacent-channel interference.

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Identify configuration mismatches that prevent WLAN access, including incorrect security mode, passphrase or key, authentication method, band mismatch, channel width, SSID settings and unsupported client capabilities.

Troubleshoot roaming behavior by evaluating AP placement, power levels, overlapping coverage, roaming thresholds, sticky-client symptoms and inconsistent security or mobility settings between access points.

Interpret wireless performance symptoms such as retransmissions, low data rates, hidden-node effects and congestion to select corrective actions involving placement, channels, power or client distribution.

Verify wireless remediation by confirming stable association, successful authentication, expected IP assignment, acceptable RF measurements and restored application performance while mobile or stationary.

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