The Dell Latitude 7390 network driver enables Windows to communicate with the laptop’s installed Ethernet or wireless adapter, helping you connect to local networks and the internet. Choosing the right Dell driver can resolve missing network devices, connection failures, or problems that appear after reinstalling Windows.

Key Features

• Network adapter recognition: Provides the software Windows needs to identify and use the compatible network hardware in your Dell Latitude 7390.
• Wired or wireless connectivity: Supports Ethernet or Wi-Fi connections, depending on the adapter and driver package you select. These components may require separate downloads.
• Connection reliability: A compatible driver can help address dropped connections, adapter errors, and connectivity issues after sleep or restart.
• Windows networking integration: Allows the supported adapter to work with Windows network settings, connection profiles, and available hardware-specific options.

How to Install

1. Identify your network adapter and operating system. Open Device Manager and expand Network adapters. If the hardware appears under Other devices as an unknown network controller, check its Hardware IDs in Properties. Confirm your Windows version and system architecture before selecting a download.

1. Choose a matching driver package. Check that the package supports both your installed adapter and your operating system. For Windows 11, 10, 8, or 7, compatibility depends on the specific hardware and driver release; a Latitude 7390 model listing alone does not guarantee support for every version.

1. Download and prepare the installer. Save the compatible Dell network driver to a local folder. If the laptop cannot connect to the internet, use another computer to download the package, then transfer it with a USB drive. Extract the files if the download is an archive.

1. Install the driver. Run the installer and follow its prompts. If the package contains driver files without an installer, open Device Manager, right-click the relevant adapter, select Update driver, and choose Browse my computer for drivers. Point Windows to the extracted folder.

1. Restart and test your connection. Reboot if prompted, then reconnect to Wi-Fi or attach an Ethernet cable. Confirm that the adapter appears without a warning icon in Device Manager and test access to your network or a webpage.

Common Issues and Fixes

• Installer fails or rolls back: Latitude 7390 chipset, Intel Serial IO, and UHD 620 graphics packages can fail if installed out of order or without admin rights. Run as administrator, pause Windows Update, install Dell chipset/Serial IO first, reboot, then graphics and audio.
• Device not detected (touchpad, fingerprint reader, camera): Often caused by missing Intel Serial IO, Realtek audio, or fingerprint/ControlVault drivers. Check Device Manager for yellow marks, install the exact Dell package for your 7390 configuration, then restart.
• Version conflicts after Windows Update: Windows may replace Dell-validated Intel/Realtek drivers with generic ones, causing audio dropouts or Wi-Fi issues. Use Dell Command | Update or SupportAssist to reinstall the 7390-specific driver, or roll back the generic driver in Device Manager.