Samsung MultiXpress M537x series Service Manual page 307

► Error Code
S6–3122
► Error message
Network cable is disconnected. Check it.
► Symptom
Network cable is disconnected.
► Troubleshooting method
1) Check if the network cable is connected to the network port.
2) Check if the green LED of the network port is on.
3) If not, unplug and reconnect the network cable.
4) Check if the network is normal. Connect the network cable to another network device.
5) If the network is OK, replace the main board.
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4. Troubleshooting
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