Most problems with the initial connection to wifi and updating are router related. Try connecting to an open wifi signal from a neighbor or coffee shop. If you can connect to an open source, the problem will likely be a setting in your router.
You can upgrade your router software over the Internet.
Try these settings on your PB which were successful for me.
The wifi connection you want is WPA Personal. Once selected it will open a box asking for some info. It wants to know the name of your home network. You can likely get this from your laptop. Check and it will give the network name your laptop runs on. Next it wants to know the router access code. This is normally printed on the router, side, top, bottom. Have a look. It may be up to 26 numbers and letters long and it could be case sensitive. Write this number down exactly as listed on your router and enter it carefully into the box on your PlayBook.
Try this and let me know if it works.
