Connect the power adapter to the router and then to the wall outlet. Note that many models do not have a physical On/Off switch .

:

| Symptom | Likely Cause | Solution (Manual page ref) | |---------|--------------|----------------------------| | No link on WAN port | Auto-negotiation failure | Force speed/duplex (Manual p.42) | | Console shows gibberish | Wrong baud rate | Use 115200, not 9600 | | LTE connects then drops | APN or authentication | Verify APN, disable roaming (p.67) | | Cannot ping LAN devices | Switchport VLAN mismatch | Set switchport mode access | | SD-WAN tunnel down | MTU mismatch | Reduce MTU to 1400 on WAN |

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