I kept getting this error when logged out. This issue only shows up when log out.

This site can’t be reached

dev.www.example.edu unexpectedly closed the connection.
Try:
Checking the connection
Checking the proxy and the firewall
Running Network Diagnostics
ERR_CONNECTION_CLOSED

Second issue is the "Automatic role population from simpleSAMLphp attributes" does not seem to work. I am able to login but I do not have the drupal admin role previlage. Here are my rules.

1:mail,=,charlie@example.edu|1:isMemberOf,=,CN=WEBADMIN.ADMIN