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10. Trouble
Shooting——
Can't access the internet
Y
Check the LAN and cable connections is ok?
Y
Access wired setting can it get IP address
success ?
Y
Check UN2 pin1&2&3&6&7&8 voltage ?
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Normal condition:
The voltage at 2.5V
N
Replace the US1 to confirm
N
Replace main board to confirm
Network Fault(wired)
Y
Y
Replace UN2 to confirm
N
38
Check LAN Server
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