I just installed mint into my Asus UM3504D laptop, and there is no wireless connection. I'm using my phone to USB tethering right now. I tried using the update manager and sudo apt update && sudo apt upgrade in the terminal, it doesn't work.
So I used lspci -vmm | grep -i wireless to get the information for the wifi card, the terminal spat this out:
MT7922 802.11ax PCI Express Wireless Network Adapter
I'm assuming the issue is drivers if it can't use the device to connect.
It works fine in windows, and I tried LMDE in live environment, which wifi works. But my internal speakers don't work in LMDE for some reason.