Outlook 2013 constantly asking for password for Outlook.com accounts

Hi

After working perfectly for many years (since 2015/2016) Outlook 2013 constantly asks me for my outlook.com password repeatedly. Gmail and GMX work fine.

I have tried the following:

reset outlook.com password on both my email accounts
repair Office 2013
remove outlook.com accounts and re-add them
MS downloadable Office/Outlook diagnostic tool

Since removing my outlook.com accounts (in despair) I am no longer able to add my outlook accounts to my mail profile. I enter my name, username and password and as soon as I press next it just asks for my password again and again.

There is 0% chance that I am entering a wrong password, because I have reset them and I store them in Keepass. I can log into my outlook accounts via the web interface without problem.

My password is 20 characters long, with numbers, symbols, upper and lower case letters.

I am not using two-factor authentication, so that's not the problem.

Other than reinstalling Office 2013, which I doubt would solve this issue, I can't think of anything else to try.

According to Microsoft "This issue can occur if the Logon network security setting on the Security tab of the Microsoft Exchange dialog box is set to a value other than Anonymous Authentication."
There is a fix for that, but it requires the email account to be configured in order to apply the fix.


With regard to Windows, it is running 22H2. OS Build 19045.4170. Windows Feature Experience Pack 1000.19054.1000.0

Please help!

Try3 said:

Have you tried logging in to your accounts through your browser and doing what MS say in the emails they will probably have been sending you every time they have rejected your password in the email client?
They have probably been telling you to go to
Review recent activity


Denis

I haven't received any emails from MS about this.
I did follow your above link and my recent activity shows the web login and android access.

When I tried to configure my accounts earlier this afternoon I did receive a Test Mail from my Outlook account, but the Outlook client refused point blank to add the account. No errors are shown.

Essentially a universal problem.....see this link.

garyb0125 said:

Essentially a universal problem.....see this link.

It would seem so indeed. Why so sudden though I wonder.