Solution 1

If your moving from https to http or vice versa and run into issues below is a check-list of possible work-a-rounds:

1. Check Plugins: If you have an SSL plugin installed that controls SSL links on your site, try to deactivate/reactivate or temporarily remove theplugin to see if the issue persists. Plugins can be deactivated on step 3 of the installer under the options section.
2. WP-Config: Check the wp-config.php file for the FORCE_SSL_ADMIN constant and try to toggle it true/false.
3. Codex: Check the codex on Administration Over SSL to see if your site complies with therecommendations.

Solution 2On some systems editing the apache ssl.config to include the following lines can resolve SSL issues. If you are not sure how to make these changes ask your hosting provider to help you.RequestHeader set X-Forwarded-Proto "https"
RequestHeader set X-Forwarded-Port "443"