My mind is fading—MSI MAG B550 Tomahawk won’t connect to the network or internet.
My mind is fading—MSI MAG B550 Tomahawk won’t connect to the network or internet.
I replaced my old motherboard with the MSI MAG B550 Tomahawk. After setup, everything works fine, but I can't access the internet through the cable. The connection worked just a few hours ago. Since this is the first time using this new board, I looked up the driver page on MSI.com, went to the drivers section, selected Windows 10 64-bit and LAN Drivers, downloaded the files, and installed them onto my USB drive. I followed the installation steps and finished the setup. The installer asked me to detect the Realtek Ethernet Network Controller, but it couldn't find it. It suggested checking if Deep Sleep Mode was enabled before proceeding. After clicking "Finish," I opened Device Manager and noticed only eight network adapters listed—just a few WAM miniports. In the "Other devices" area, there were two Ethernet controllers marked with a yellow icon. I saw videos online about fixing network drivers, but those tools aren't available on MSI anymore. What should I do next? Thanks for your help!
It appears the device is malfunctioning. If no activity is detected through the status LEDs on the RJ45 port, the driver likely has limited options.
These options won't work? Check the official MSI page for the latest BIOS information.
Hello Rumberg, I hope you've found a way through this confusing situation. Let me recount my recent journey with the MSI MAG Z790 Tomahawk WiFi motherboard, which has been a persistent source of annoyance and countless troubleshooting attempts. When I first set it up, the biggest problem was that no drivers were installed. Consequently, devices like network adapters, audio, Bluetooth, etc., showed up as 'Other devices' in the Device Manager. Getting online was nearly impossible, so I had to boot into Windows in limited mode. Eventually, I used a second PC to download the required drivers from MSI’s site. It’s hard to say if this level of difficulty is typical, especially since I didn’t face such issues when building my previous system five years ago. Now, the WiFi works and the PC functions properly. However, Ethernet remains a challenge. Despite installing the newest drivers from MSI or Intel, using MSI Center’s auto setup, and even trying Intel’s driver support tool, I haven’t managed to get a stable connection. What stands out is that the latest LAN drivers for Windows 10 install without issues—appearing in Device Manager as 'intel® Ethernet Controller i226-V' under Network Adapters. I’ve tried disabling the device and deleting drivers, but nothing changes. It seems the Ethernet port itself isn’t the problem; it’s functioning normally when connected to my old PC. The port lights on the new board flicker amber and green during startup, which suggests activity. Given this, it’s unlikely a faulty port or motherboard is at fault. I suspect there’s a simple fix I’ve missed—perhaps a BIOS setting was accidentally left enabled that blocks Ethernet, or maybe the router has a minor issue. Thank you for your help; any advice would be greatly appreciated.