Recently my business manager has noticed that she cannot use her desktop Outlook client when at home on her home laptop. It gives her an error claiming that "your logon information was incorrect." The connection requires RPC over HTTP unless connected to a VPN. All the configuration is the same as it's always been, nothing modified. I double checked all the settings and indeed they are the settings required by our home office. Up until yesterday, according to her it was working fine from home.
I was able to connect to her account using OWA, but for some reason I cannot get it to work from her desktop. I called our home office's IT support center and they verified that the account has not been locked out or that the credentials have been changed. Any help would be much appreciated!