Encountered a problem RTL8309

Ethernet chip using KSZ8081RNA QFN - 24, before the switch chip, between the host and the computer can be PING, but after the switch chip not line,
Switch chip with RTL8309SB.

Please the great god teach

Pick out from external switches on, only the light is on, RXTX wiring is correct, the voltage is normal

CodePudding user response:

After RTL8309 PING, before 8309 can be PING

CodePudding user response:

The network network problems