Cisco Meraki insights

Remote Targets or devices show 'Not Connected' status when unable to reach Meraki cloud over TCPS port 8883, preventing centralized management and visibility. Often caused by firewall rules, proxy issues, or network path failures.

802.1X Authentication Failures Breaking Client Access

Clients fail to connect when RADIUS authentication fails due to incorrect credentials, unreachable RADIUS servers, certificate validation issues, or Active Directory problems. Manifests as 'auth failure' errors in dashboard 802.1X tests.

When channel utilization exceeds 50%, wireless performance degrades significantly due to airtime contention. Client load imbalances across APs and insufficient AP density compound the problem.

Weak signal strength (RSSI below -65 dBm) and poor signal-to-noise ratio (SNR below 25 dB) cause low throughput, packet loss, and connection instability. Often results from excessive AP spacing, interference, or client distance.

Clients fail to obtain IP addresses when DHCP pools are exhausted, often caused by sudden increases in client count or excessive lease durations. This manifests as 'no_offers_received' errors in event logs.

Access points negotiate at lower Ethernet speeds (10/100 Mbps instead of 1+ Gbps), creating a bottleneck that prevents wireless clients from achieving Wi-Fi 6/6E speeds and degrades overall network performance.

Cyclic Redundancy Check errors on switch ports signal data corruption during transmission, typically caused by cable damage, duplex mismatches, or EMI. High CRC rates (>100/hour or >1% of traffic) indicate severe physical layer issues.

Access points enter low power mode when insufficient PoE power is delivered, disabling USB interfaces, radios, spatial streams, and Air Marshal security features. This creates coverage gaps and security vulnerabilities.