So, out of the blue My macbook has started to go offline. Whenever my macbook goes to sleep, I shut it down, restart it, or close the lid. I have to go through the whole network pref. again and enter and save my WEP key. I have a new iMac and a few other devices that use my internet and they do not have this problem. Does anyone have any ideas?? I've searched for answers but nooooo, its just a huge pain in the ass.