First time apple user here---just got a macbook last wednesday. I have been using wireless internet since then. Last night it was working slow, while my airport signal was just as strong as usual. Then Safari kept saying I was not connected to the internet and Airport continued to tell me that I was connected. I really don't know what I am doing, or what my settings should be--so clueless here. I tried restarting my computer, shutting it down for a while, resetting my router, unplugging my router, etc. Right now I am connected via my built in ethernet. If, by chance I get it all working again it only last for a few minutes and the internet no longer works. Sorry if this is a newbie, idiotic question, but I really am at a loss at what to do.