Take a look at these general troubleshooting suggestions for https://www.qwikaid.com/blog/how-to-fix-aol-email-not-working-with-outlook/.
There are numerous comprehensive ways that we will explore later in this article, but initially, we'd like to provide some extremely basic yet useful troubleshooting tips that won't take much time or effort.
1- Make sure you're using the correct login credentials when configuring.
2- Verify that your internet connection is strong enough to complete the configuration.
3- Before configuring Outlook, double-check the size and space available.
4- Look into the server outrage for both AOL and Outlook.
5- Clear off your browser's cache and cookies.