Q. Why do I get a Bad HTTP response (500 Internal Server Error) when loading sites?
Troubleshooting from the ManageWP Dashboard
ManageWP also includes features to help load the problematic sites. In your ManageWP settings please do the following:
- set Max requests to 1 and 1
- set time delay to 1000ms
- check Safe Mode
If this does not solve your problems then the error is server side and could be caused by memory limit and PHP execution time.
Increasing your memory limit and PHP execution time
You can try editing your .htaccess with these two lines (make a backup of your .htaccess file before editing it).
php_value max_execution_time 180 php_value memory_limit 128M
Alternately you can ask your hosting support to increase these values for you.