I'm having lots of trouble with my wireless network one minute it's really fast next minute it's dead and nothing will download, I'm using an original airport extreme (the dome shaped one) I've checked my Internet line is ok by plugging directly into the Ethernet and it's fine, I'm wondering if it maybe an airport firmware problem? I'm on 5.2 I see that I can download version 7.1.1 from apple, should I do this or could my problem lie elsewhere? Ps. I've changed channels as well and that doesn't cure it. Cheers!