Drupal URLs not working

Question

I am using Drupal 7 and suddenly my URLs don't work anymore. I upgraded Apache and PHP, but that was my only change. It were just minor version changes.

Now my problem. When I access my main url, let's say http://example.com, I get a page not found error. If I access http://example.com/?q= it does work. I have not enabled clean URLs, but the .htaccess file is in place. Apparently I can't leave out the ?q=, although it should not be necessary at all.

If you need any more information, please ask.

Edit: It think it is weird that my page shows this: The requested page "/http://example.com/" could not be found. (the leading slash?)

Answer 1

I found out the problem. The problem was a Google Chrome extension I was using, Hosts Manager. It broke my Drupal installation, so that was the problem. It took a while before I figured it out, and I now know you should not use this extension!

Answer 2

Please follow the guidelines in drupal.org for Clean URLs

Answer 3

When you upgraded Apache, did you ensure that:

• Mod Rewrite was still enabled
• Allow Override is set to All in your http.conf for your docroot