Partitioning a hard drive

[AZ]

I have a new problem today. Yesterday, after I installed LL on my hard drive, I was able to get on the internet. Today, I cannot get on the internet using a wireless connection. I can get on using a ethernet cable. When I move the cursor to the lower right corner of the screen and select connections, my computer does not see my wireless network. If I select edit under connections, I can see my network and I can edit the information. Any ideas. Thanks.

AZ