I've been trying to configure my raspberry pi for use wirelessly. About a year ago I bought a Edimax 150 mbps Wireless 802.11b/g/n nano usb adapter (EW-7811Un) for use with an older raspberry pi. I never used it then and it sat in the box until now. I recently bought a Raspberry Pi 2 Model B and want to use it with the dongle, when I boot up, I see the icon in the taskbar for network manager or whatever it is called, and I click it and I can see the wireless networks available to me. When I select my network and enter the very long WEP key that is usually used to connect it says that it is incorrect or something along those lines, although when I enter something that is not the password, it says that I am connected although I cannot actually access the internet when I open up a browser. I was wondering if any more experienced Pi users have ad this issue and overcome it, or what I should do to troubleshoot this issue.
Thanks in advance!