Abstract

Primary-school WiFi networks built on entry-level routers are rarely measured, so complaints of slow access cannot be checked against objective figures. This case study aims to establish a limited Quality of Service (QoS) baseline for the WiFi network of SDIT Yudha Patria, North Jakarta, which runs on a MikroTik RB941-2nD router and serves about 8 to 10 concurrent users. Production traffic was captured with Wireshark at one client position in two morning sessions of about one minute each, and four parameters were computed and compared with the ETSI TIPHON categories. The packet inter-arrival interval, used as a proxy for delay, was 53 ms and 17 ms (indicatively Very Good); no lost TCP segments were detected at the client (0%, Very Good); and jitter was 0.054 ms and 0.789 ms (Good). Throughput was 75.41 Kbps and 9,195.81 Kbps, reflecting very different offered traffic, and was not classified. No degradation was detected at the measurement position under the observed load. The contribution is a low-cost, reproducible pre-policy baseline procedure that reports the calculation basis of each parameter and separates what client-side QoS can monitor from what it can diagnose.