When using the RM Unify SSO URL in a Chrome browser, users are redirected to the 'RM Unify automatic login' page and the automatic logon fails. However, the same Windows user on the same domain joined device can successfully use Windows® Internet Explorer or Microsoft® Edge to automatically log on using the RM Unify SSO URL.

For example, if your school's RM Unify SSO URL is https://testschool.rmunify.com/sso, users successfully SSO to RM Unify using Internet Explorer or Edge, however Chrome redirects users to https://sts.platform.rmunify.com/auth/UnifyAuth/testschool/false.

By default, a Chrome browser will use the settings configured in the Internet Options, including the use of Windows integrated authentication. If Chrome-specific policies are applied to the device, this can alter the default behaviour.

This issue has been seen to occur when the Chrome registry setting 'authentication server whitelist' has been applied to the device, either manually or via group policy. It creates and populates the following registry key:

HKCU\Software\Policies\Google\Chrome\AuthServerWhitelist

Please review the Chrome setting with your usual network support provider to identify if this setting is required and remove, if appropriate.

If you are using a Community Connect 4 (CC4) network, please review the Google Advanced setting contained in the Internet & Email GPO, or other custom settings that may be applying to users.