WiFi network connectivity is VERY sporadic

[PatN]

This is very painful, considering that I only have 200 MB of data per month with AT&T.

And I have a presentation tomorrow on Evernote in which I'm supposed to use my phone for a demo.

If anyone can lead me in the right direction for diagnosing this major problem, it would mean the world to me!

This is a Samsung Galaxy S (Captivate). Had it since August 2010.

Restarting the phone doesn't do much to fix the WiFi connection. Sometimes when I click the WiFi icon, the text underneath will say "On", but the icon doesn't turn green and the WiFi notification tray icon isn't there either.

 

[lunatic59]

It could be a lot of things. If this started happening all of a sudden, then you might look at recent changes to your phone/network. If it's been gradual, it could either be failing hardware or degradation of the OS. A factory reset might clear it up for you, but make sure everything is backed up first.