You are not alone. The Broadcom BCM43142A0 is a notorious combo chip (Wi-Fi + Bluetooth). Dell stopped providing official updates for it after Windows 8.1, leaving Windows 10 users in driver hell.
Let me know in the comments – this chip has frustrated Dell users for nearly a decade.
If you own a Dell laptop (such as the Inspiron 15 3000 series, Vostro, or older Latitude models), you might have encountered a frustrating problem after updating to Windows 10 64-bit: your Wi-Fi keeps dropping, the adapter disappears from Device Manager, or you see a yellow exclamation mark next to "BCM43142A0".