Satellite P750 - no ethernet cable connection

I have a Satellite P750 running on Windows 7.
When I plug the ethernet cable, I have no connection.
The same cable works fine on other PCs.
The network is set to obtain an IP address automatically. The network connection uses RealTek PCIe GBE family Controller and diagnostics say that this works normally.

I don't know what else to check or try to get this connection work.
Any suggestion would be appreciated.

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Are you using the original operating system that you got with your laptop?
When you check the NIC in Device Manager is installed and registered properly card?
When you connect the LAN cable to the LAN port are yellow and light green assets?

Tags: Toshiba

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