Hi Emma H,
Thank you for the detailed information. Since the laptop can connect to your phone’s hotspot but not other Wi-Fi networks, this may be related to the current wireless driver or adapter rather than the router alone.
Could you please press Windows key + R, type winver and share the Windows version and OS build shown?
If possible, please also connect the laptop directly to the router using an Ethernet cable and check whether the internet works. If the laptop does not have an Ethernet port, you would need a USB-to-Ethernet adapter. This can help determine whether the issue is limited to the wireless connection.
While connected through Ethernet or your hotspot, visit the Acer support website and download the wireless LAN driver specifically for the Acer Swift 1 SF114-32 and your Windows version. I recommend using Acer’s driver rather than relying only on the driver selected automatically by Windows.
I would avoid changing the BIOS for now. Please let me know the winver information, whether Ethernet works and the version of the wireless driver currently shown in Device Manager.
I hope this helps narrow down the cause.
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