A city library AP still beacons, but clients report a 'slow AP' after a suspected MIMO radio-chain fault. What expert diagnosis fits?
Select an answer to reveal the explanation.
Short Explanation
The AP can still say 'hello' with beacons while half its MIMO arms are in a cast — fewer spatial streams means slower data even though the SSID is visible. Don't assume beacons equal full radio health, and don't blame DNS by default.
Full Explanation
MIMO performance depends on functioning radio chains. Partial chain failure can reduce spatial streams, MCS, and throughput while the AP continues to beacon and serve at degraded capability. Beacon presence alone does not prove full MIMO health, and wired DNS issues are a separate failure mode that should not be assumed without evidence.