Ensure internet access only when the Speed and Duplex configuration is configured at 10 Mbps with full duplex.
Ensure internet access only when the Speed and Duplex configuration is configured at 10 Mbps with full duplex.
It seems no one recommended switching to a different Ethernet cable, even though it should have been the first consideration.
You can test it because it's a straightforward choice, though it doesn't match the symptoms. If four out of eight wires function properly, it should auto-negotiate to 100Full. Any deviation should result in complete failure. Typically, you only need to adjust speed or mode manually if the switch port is configured that way.