Start by collecting time-series modem readings: RSRP, RSRQ, SINR, current serving band and cell ID, registration state, the assigned IP, and data counters (bytes in/out). Note the exact time and which carrier/SIM you’re using, plus any disconnect reasons shown by the router. Also grab router-side diagnostics: WAN health-check results, last reboot time, power events, SIM switch events, VPN or remote-access status, and any error messages in the system logs. If available, record temperature and supply voltage at the device. With these readings, compare performance during good and poor periods, correlate changes with antenna position or carrier behavior, and share the data with Comset to help identify whether the bottleneck is radio quality, the antenna path, or the router configuration.
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