Try these things to troubleshoot network connection issues in Windows 10.
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Use the Network troubleshooter. Select Start > Settings > Network & Internet > Status. Under Change your network settings, select Network troubleshooter. Open Status settings
Make sure Wi-Fi is on. Select Start > Settings > Network & Internet > Wi-Fi. Next, select Show available networks, and if a network you expect to see appears in the list, select it, then select Connect. Open Wi-Fi settings
See if you can use the Wi-Fi to get to websites from a different device. If you can’t, restart your modem, router, and device, and re-connect to the Wi-Fi.
If your Surface still isn't connecting, try the steps on Surface can't find my wireless network.
Microsoft Network & Wireless Cards Drivers
When you run this test, we measure the connectivity between your device and the internet, and from there to Microsoft’s network. Insights from these measurements help you discover and understand connectivity problems for individual office locations and how you can update your network architecture to improve connections to Microsoft 365.