Change password MBAM service account in IIS

Michael A. Japp 21 Reputation points
2022-10-21T19:03:55.623+00:00

I have a two-server deployment: MBAM application webserver and MBAM SQL database server. I was required to change the passwords of the service accounts, both IIS and SQL.
Active Directory changed the passwords in AD and going to the SQL is good.
However, the MBAM IIS server will not bring up the website. The error is "HTTP Error 503: Service is unavailable".

With research I found IIS -> Application Pools -> Advanced Settings -> Identity, showing service account name and a little box to click that brings up a small window to change the password. When I enter the same password that was changed in AD and confirm, the error says "The specified password is invalid". The password is 16 characters with upper and lower letter, numbers, and two special characters. I have the old password, but in that box is no place to enter it.

Then I have to change the password in /Reports/Pages/Folder.aspx, but right now the entire website is not loading.

Our technical guy on this task left us, so the managers want me to fix it and I've never done this before....

Windows development | Internet Information Services
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  1. Bruce (SqlWork.com) 78,006 Reputation points Volunteer Moderator
    2022-10-21T20:41:31.96+00:00

    the IIS pool account identity entry only allows passing login info. it does not support change password. you change the password in ad, then just update the password in IIS.

    note: when you give IIS the login/password, it tries to login to validate the combo. the error means you did not enter the correct current password. also be sure the IIS account is a domain account and not a local account (which would have its own password).

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  1. Sam Wu-MSFT 7,561 Reputation points Microsoft External Staff
    2022-10-24T06:39:57.477+00:00

    @Michael A. Japp

    You can try the following steps to change the password in iis:

    For IIS, locate the application pool that server is using, right click on it, click advanced settings, click the Identity box in the Process Model section, click the three dots on the right of the box, click the Custom Account radio button, click Set, enter your MBAM service account name and password, and click OK.
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  2. Michael A. Japp 21 Reputation points
    2022-10-24T00:18:25.567+00:00

    Thanks for that information, but if the Server Manager -> IIS ... does not support changing password, then where/how does the password get changed? Do we have to completely re-install the MBAM BitLocker server software with the wizard in order to have a different password? Some organizations want the service account password changed every year, or 6 months or even every 3 months.


  3. Michael A. Japp 21 Reputation points
    2022-11-29T18:42:48.433+00:00

    A trouble ticket to Microsoft Enterprise support was helpful. They suggested that the installer was probably not a SQL Admin and to check MBAM Administrator groups. I analyzed the MBAM groups in Active Directory and asked the Active_Directory guys to check my accounts in MBAM Administrator group. I made a list of all the MBAM groups and what users are in each group. I saw that the MBAM Administrator group is a Privileged Access Group. AD thought to try adding my server admin account to the server's group and I tried accessing thru the SSRS but that didn't work, so then we tried the reports URL from the PC login instead of on the server and with that account logging into the PC, the URL worked to get to the elusive MaltaDataSource page! I entered the connection strings as in examples and the first time gave an error but I tried again and it saved successfully. Then I went to the regular BitLocker Admin console and it produced a normal Enterprise Compliance report. So the problem is now resolved and I have gained experience to do this again when needed.

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