My new duo 13, bought last week, will only give me very limited wifi usually only 1 bar and keeps stopping altogether unless I am right beside the router, although the signal is fine on other laptops and phones and Kindle.  

I have tried to upgrade from Windows 8 to 8.1 and it won't allow me, says the BIOS needs to be upgraded but although this is showing on the update list it won't let me update and install this either, keeps saying contact  the manufacturer.

Please help it is very disappointing as I thought I had bought the prefect solution for our needs and to do so spent condiserably more the I had intended.