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TROUBLESHOOT BY SYMPTOM

Router and modem issues
without guessing.

Routers fail in patterns: heat, bad placement, firmware problems, weak power adapters, crowded networks or a modem that is actually losing the upstream connection.

Start here

A restart is safe. A factory reset can erase network names, passwords and custom settings. The guides here keep those two actions separate.

Compare with Wi-Fi fixes →
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Lights and setup

Use the lights as clues without assuming every blinking light means the same thing.