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PASSEDinfrastructure / wifi_channel_interference
WiFi Channel Interference from Neighboring Tenant
A neighboring tenant in the shared office building installs high-power wireless equipment on overlapping channels, causing severe co-channel interference. Client devices experience packet loss, low throughput, and frequent disconnections across the entire 2.4GHz band and DFS channels on 5GHz.
Pattern
WIFI_INTERFERENCE
Severity
CRITICAL
Confidence
90%
Remediation
Remote Hands
Test Results
| Metric | Expected | Actual | Result |
|---|---|---|---|
| Pattern Recognition | WIFI_INTERFERENCE | WIFI_INTERFERENCE | |
| Severity Assessment | CRITICAL | CRITICAL | |
| Incident Correlation | Yes | 21 linked | |
| Cascade Escalation | N/A | No | |
| Remediation | — | Remote Hands — Corax contacts on-site support via call, email, or API |
Scenario Conditions
Shared office building, 3rd floor. Neighbor installed 4 high-power APs on channels 1, 6, 11 and 5GHz DFS channels. Our APs detecting -30dBm interference (extremely strong). ARM/RRM unable to find clean channels. 150 affected wireless clients.
Injected Error Messages (2)
Floor 3 APs experiencing severe co-channel interference — detected 4 foreign APs at -30dBm on all 2.4GHz channels, channel utilization 95%+ from external sources, client retry rate: 40%, average SNR dropped to 5dB, ARM channel changes every 30 seconds unable to find clean channel
Spectrum analysis showing wideband interference — 2.4GHz band completely unusable on floor 3, 5GHz DFS channels also impacted, radar-like interference triggering DFS channel evacuation, 150 clients with degraded connectivity, throughput reduced by 90%, packet loss: 35%
Neural Engine Root Cause Analysis
Floor 3 wireless access points are experiencing severe co-channel interference from 4 external/rogue access points broadcasting at -30dBm signal strength across all 2.4GHz channels. The interference is causing 95%+ channel utilization, forcing the Automatic Radio Management (ARM) system into continuous channel switching every 30 seconds without finding clean spectrum. This results in degraded client performance with 40% retry rates and SNR dropping to critically low 5dB levels, effectively rendering the wireless network unusable on Floor 3.
Remediation Plan
1. Immediately perform RF spectrum analysis to identify and locate the 4 interfering access points using directional antennas or spectrum analyzers. 2. Contact building security/facilities to physically locate and disable rogue APs if they are unauthorized devices. 3. If interference is from neighboring legitimate networks, coordinate with those network administrators to implement channel planning and power reduction. 4. Temporarily force Floor 3 APs to 5GHz-only operation to restore immediate connectivity. 5. Implement long-term 2.4GHz channel planning with neighboring networks and consider upgrading to Wi-Fi 6/6E for additional spectrum availability. 6. Deploy RF monitoring tools for ongoing interference detection and alerting.
Tested: 2026-03-30Monitors: 2 | Incidents: 2Test ID: cmncjqrc803tbobqet8pc5h6e