I'm on a MacBook 10.4 (1.83 GHz) and lately it has been randomly disconnecting me from the internet. I've checked the modem, tested my connection. But my Mac refuses to show any pages on Firefox, Safari, or anything on Messenger. It just chooses not to show me my internet. I restart my computer, and it work just fine. Unfortunately this happens several times a day. This has been happening for about a week. Thanks for any help. And and all advice is appreciated.