Hi Zelalem Animaw,
I understand how frustrating this can be when Wi‑Fi turns off as soon as an Ethernet connection is in use. Thank you for your patience while troubleshooting this.
I can also see that Q&A Assist has already suggested checking the Wi‑Fi settings, so please review the Wi‑Fi‑related guidance mentioned above to ensure everything is set correctly.
In addition, please confirm that under Settings > Network & Internet > Mobile hotspot, “Share my internet connection from” is set to Ethernet, and “Share over” is set to Wi‑Fi. Since Mobile Hotspot relies on the Wi‑Fi adapter to broadcast the connection, Wi‑Fi must remain enabled even when Ethernet is connected.
If your goal is to force the PC to use a Wi‑Fi hotspot instead of Ethernet, you can also temporarily disconnect the Ethernet cable and then connect using Wi‑Fi.
To help narrow this down, could you please confirm whether Wi‑Fi or Mobile Hotspot turns off immediately when Ethernet is plugged in, or if you see any specific error message when trying to enable it? This will help determine whether the behavior is related to Windows prioritizing the wired connection.
Please let me know once you’ve confirmed the settings or if anything looks different on your side, and I’ll be glad to help you continue from there.
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