Outlook.com auto complete addresses no longer works
I have an elderly client who uses outlook.com in a browser for their msn email. All of a sudden, auto complete no longer works so when they start type an email address on the To line, no suggestions pop up. I verified this occurs on multiple browsers across multiple computers. I also verified this does not occur with one of my outlook accounts when I log into outlook.com and try it there, so it seems somewhat isolated to their account. I tried exporting all their contacts, then deleting them all, adding only one to see if it was an issue with malformed data, and it still does not work. Using built in browser debugging tools, I can see that when you type on the To line, 401 (Unauthorized) errors start to populate in the debugger trying to access the URL https://outlook.live.com/search/api/v1/suggestions I can still click the To button and get the contacts list and add them from there, but this is not ideal, as this individual is going to struggle with trying to learn new methods and this method is several more clicks than just typing a few letters in the To line to auto complete. Are there any other suggestions that I could try? I can't seem to find anything about this in my searches so I don't believe it to be a widespread issue.