Why do internet providers services go down?
ISP problems usually fall into three buckets: an area-wide line/node failure, a regional cellular tower or core-network event, or your own equipment (modem, router, ONT, gateway). User-report spikes correlate strongly with the first two; equipment failures show up as quiet reports but a problem only at your address.
What should I do if a internet providers service is down?
Compare user-report volume on the provider's page here against your own experience. If reports are quiet, the issue is most likely local — restart equipment, test on cellular, check ethernet directly. If reports are spiking, you're waiting on the carrier and a phone call won't speed it up. Either way, run /speed-test on a known site to confirm whether your connection itself is the problem.