https://mskb.pkisolutions.com/kb/894825
You receive an Error -2147022675 "User Not Found" error message Verify that you correctly entered the user name. If no text box exists to enter the domain name separately, make sure that you enter the user name in either the Domain\UserName format or in the UserName@Domain format. You receive an Error -2147023545 "Cannot Access Domain Info" error message Verify that the computer that is running IIS can access the domain controller for the domain that you are running on. Additionally, make sure that you are using a valid domain name. You receive an Error -2147024845 "Network communication problem" error message This error message translates to a network error message where the computer that is running IIS cannot communicate with the remote computer. Make sure that the domain controller is available for the domain in which you are trying to change the password. Also, make sure that the domain controller for the domain can communicate with the computer that is running IIS. You receive an Error -2147023569 "Account Restriction" error message Make sure that no domain policy is in effect that prevents the user from changing the password. For example, a MinPasswordAge property restriction or a logon hour restriction may be in effect.
https://microsoft.public.inetserver.iis.narkive.com/Y8QOhida/changing-password-using-iisadmpwd-aexp3-htr
2147023569 - Please wait 7 days later to change your password. 2147022675 - Incorrect parameters: Please ensure your username and old passwords are correct 2147024891 - General access denied: Please check whether your account is disabled or locked.