This inability to connect started after rooting phone. When I go to Settings, Wireless and Network, Wi-Fi Settings, Turn-on Wi-Fi, it begins a scan, finds no network and turns off the Wi-Fi. If I add WiFi Network and enter credentials it says 'Unable to Save Settings'. This is why I tried to install via my PC. After downloading an app, it will say it will be installed shortly but never does-just sits there. Rooting has not adversely affected anything else. I saw a comment on the forum that this can occasionally happen. Think I'll try a clean install. What do you think?