Why does Kuaimiao drop only at night? Check whether the ISP session or modem slept first; only then tune client auto-reconnect. Timeline beats blind reinstalls.

If daytime is stable and failures cluster between midnight and dawn, inspect PPPoE status and scheduled modem reboots before blaming a city node.

Checklist

Align modem lights with Kuaimiao log timestamps. WAN dies first → ISP/modem. WAN stays up → disable auto-reconnect and reproduce manually using the reconnect loop guide.

Gamers seeing night-only ping spikes should also reread the gaming latency article.

What you should do

Update from the download page; avoid hammering nodes at 3 a.m. Router shares can amplify flaky WANs—see router sharing.

If it continues

Report version, protocol, and rough disconnect time. Account issues: FAQ. Skip cracked “night fix” APKs.