أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
I think you must check all the LAN cable connected, and if it's ok, try use the pinging command to your server. check the configuration of your firewall.
And there is a time that your LAN onboard is not working to connect in the other switch port , you must provide a PCI LAN card to replace the one.
