I changed index.php to offline.html as instructed. When I completed the upgrade, I changed it back. When I go to my URL, I still get the page from the offline.html, however, if I enter my URL/index.php, my site loads just fine. The CP side works fine too.
HELP!
http://mysite.com—gets ‘offline’ message
http://mysite.com/index.php—works corrctly