From the 'General Settings;' page within the admin area, make sure that 'Enabled SSL/TLS' is enabled. This is the setting that controls the redirect to HTTPS with Web Wiz Forums.
Web Wiz Forums 11.04 was released over 7 years ago, checking the release notes, changes where made in 2017 in Web Wiz Forums 11.08 to fully support SSL forum wide.
Web Wiz Forums 11.04 would redirect to HTTP for some pages and HTTPS for others, with Web Wiz Forums 12.05 you have better support for SSL throughout the forum and also supports enabling HSTS in IIS.
Edited by WebWiz-Bruce - 19 April 2022 at 1:45pm