Okay, I think this time Acer really fixes it. You need to download the latest wifi driver in Acer's support page for this tablet.
Then, you need to go to your device manager and uninstall the network device. Reboot it. Then go back into device manager again and you should see unknown device. If you don't, remove the network device again and reboot. Once you see that unknown device, install it's driver by browsing into the folder where you extract the wifi driver.
This has fixed my issue for good. This has been my longest run without limited issue, at least.
Please note that just by updating your driver won't fix it. You have to remove the drivers completely so that your machine shows it as unknown device then install the latest driver.
This tablet is now an awesome machine!