I have migrated an instance to Ubuntu 16.04, php 7.0.22, and moodle 3.4. When I click on the login link on my home page, it is redirected back to my home page without displaying a login page.
DocumentRoot = /var/www/html/moodle
The login link shows https://my.domain.name/login/index.php
I have changed all database references to wwwroot to the current one.
What should I look at next?