Here you are.
Please help me with the following test.
1. Install kernel debs at above link
2. Reboot to use the new kernel deb
3. Test and see if the wifi works
4. Attach the output of `dmesg` and `rfkill list`
If there are physical wireless switch, please try to turn off, record the output of `rfkill list`, then turn on, record the output of `rfkill list` and see if the wifi works
And then please blacklist acer-wmi, reboot. and test the wireless and attach the output of `dmesg` and `rfkill list`.
Please keep physical wireless switch as on when booting the system.