We recently went to Microsoft Edge (latest revision) as our default browser on our Windows 10 Pro desktops. When accessing our Exchange Online mailbox using the web browser, we get a sign-in asking for the email address, and then it takes us to the organization's sign-in page. Once that happens, we get a windows security dialog that asks how we want to log in.
We click Use a different account and type in our email address and password once again.
The problem is, this dialog box is missing the checkbox for "Remember my credentials" checkbox is missing entirely. If I do the same thing in IE 11, this dialog box does have it and it can be checked.
We are controlling Edge using group policy, but we do not have any settings configured that would impact whether this check box would appear or not. Edge will offer to save passwords for sites but ANYTHING that pops up in this Windows Security dialog box above lacks the Remember my Credentials checkbox. This particular URL stores its passwords in credential manager as a Windows Credential and not a Web Credential.
Am I missing a setting somewhere that allows Edge to save to the Windows Credential?