you will have to be a bit more informative than "it will not connect".
How exactly have you tried to connect, did you see any error message when it failed to connect? what did they say? The more info you give in your support question, the faster the solutions will be provided
can you open the terminal and type these commands and post their output here:
lspci
ifconfig
Now while on the terminal, log in as root by typing "su" then press enter and then enter root's password when asked and press enter again to be root and then do the following.(the prompt should be red in color now)
1. Run this command :
service syslog restart
2. Try to connect to your network
3. Run this command and then paste its output here:
cat /var/log/syslog | tail -n 20
ps:
copy and paste the commands to make sure you dont mistype them