Internet connects most of the time but not always
Ok, I seem to have a little problem with it. Sometimes when I turn it on it boots up fine, no chime but I have the sound muted. When I go to launch firefox (newest one) it never loads. My airport menu (thingy at the top of the menu bar) says I have a full signal (the airport express and iMac are less than 20 feet away from each other). Same thing with Safari. Everything else still works, i.e. xbox 360, MacBook, wii, and an iPod touch, at the same time. Sometimes it works right the first time but other times it will not work at all. Restarting and turning it off then back on doesn't help either. I have to turn it off for over 30 minutes then try again and it always works after that. Any ideas?
p.s.- sorry about the length
Sounds to me like a heat problem. When you first boot up will Firefox run then? If it fails to load, trash it and download a new one, you may have gotten a corrupted version. Do this first before things heat up. Next we will try to determine what part is failing. Patience will win the day here.
I have the same exact problem as you, except that the 2 accounts i use on my intel core duo iMac will not connect to the internet at all, yet it does connect on the computer administrator account. It also shows that the wifi bar has a full internet connection. None of my browsers work or online games. none at all. it just says cannot connect to server. any tips on this?