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No network after the switch reboots

Anonymous
2024-08-15T05:16:09+00:00

We are experiencing a technical issue with Server 2019. Specifically, whenever the network switch undergoes a restart, whether due to a firmware update or any other reason, the LAN port loses its assigned static IP address. As a result, Remote Desktop Connection (RDC) becomes unavailable, necessitating a physical connection to the server via a monitor for login purposes.

To resolve this issue temporarily, we must disable and then re-enable the LAN card. This action restores the connection and allows us to regain access to the server.

Windows for business | Windows Server | Networking | Other

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  1. Anonymous
    2024-08-15T07:17:14+00:00

    Hello

    Thank you for posting in Microsoft Community forum.

    Based on your description, here are the possible causes as well as some solutions that can help you fix this.

    1. Check the static IP settings of your network adapter:

    Right-click on the Start menu and select Network Connections. Click "Change Adapter Options", then right-click on your LAN adapter and select "Properties". Select Internet Protocol Version 4 TCP/IPv4

    and then tap Properties.

    Make sure it's set to "Use IP addresses below" and fill in the correct static IP address, subnet mask, and default gateway.

    1. Prevent the network adapter from entering a low-power state:

    Find the network adapter in Device Manager, right-click and click "Properties". Go to the "Power Management" tab, untick "Allow the computer to turn off this device to save power".

    1. Make sure you're using the latest drivers:
    2. Network reset

    Reset network settings in Windows: Open Settings, select Network & Internet. Scroll down and find "Network Reset" and follow the prompts to reset your network settings.

    1. Confirm that the network switch is configured correctly:

    Check and make sure that there are no configuration issues with the switch, such as VLAN settings, etc., to ensure that there are no configuration conflicts between the server and the switch.

    I hope the information above is helpful.

    If you have any questions or concerns, please feel free to let us know.

    

    Regards,

    Jill Zhou

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