How to: Update speed and duplex settings for your network adapter in Windows


Instructions

  1. Open Settings.

  2. In the left-hand menu, click Network & internet. Then, click Advanced network settings.

    Windows Settings window with the Network & internet section selected and the Advanced network settings option highlighted

  3. Locate the adapter for which you wish to adjust the settings, and expand that section using the disclosure arrow. (Most commonly, this is named "Ethernet", but it can vary based on hardware manufacturer or operating system configuration.)

    Next to "More adapter options", click Edit.

    Windows Settings window with Advanced network settings selected, and the “Edit” button highlighted

  4. If prompted by User Account Control, click Yes.

    User Account Control dialog box, with the ‘Yes’ button highlighted

  5. Click Configure.

    Ethernet Properties window with the Configure button highlighted

  6. Under the Advanced tab, there is a "Property" box on the left-hand side. Choose Speed & Duplex, Link Speed, Media Type, Connection Type, or the similar box on the left-hand side.

    NOTE: This options on this screen can vary by network adapter manufacturer, so each computer will be different.

    Once the item under the "Property" box is selected, change the selection in the "Value" drop-down list.

    • For TTU residence halls, change it to Auto Negotiate, Auto, AutoSense, or similar.
    • For any other on-campus connections, if your port is configured for 1 Gbps, change it to Auto Negotiate, Auto, AutoSense, or similar. If your port is configured for 100 Mbps, change it to 100Base-T Full Duplex, 100Mbps Full Duplex, 100M_FULL or similar.

    CAUTION: If you change this setting it may affect your connection in other locations! For instance, if the computer is a laptop and you take it off campus, you may have to set this option back to its default settings.

    Ethernet Connection Properties window with the “Speed & Duplex” property selected, the Value dropdown expanded, and Auto Negotiation option highlighted

  7. Click OK.

    Ethernet Connection Properties window with the OK button highlighted

Outcome

Your Windows computer communicates over the network using the optimal settings for your port.