In order to resolve this issue on Apex Central Web Console, the following steps were taken.
- Stop the ApexCentral Service.
- Modify web.config file by changing passwordFormat="Hashed" to passwordFormat="Clear"
- Start the ApexCentral Service.
- Logon to Apex Central.
- Try to access the below URL on the browser you try to logon:
https://<FQDN or IP Address>/TVCSDownload/SSO_PKI_PublicKey.pem - If it cannot see the content of the pem file, please make sure the virtual path, TVCSDownload, is existing under Default Web Site of the IIS Application.
- Run the below command to fetch back IIS related settings:
%systemroot%\system32\inetsrv\appcmd list Config > c:\webSitesInfo.txt - Check for any recent changes/actions performed before the login failed issue started.
- Make sure everyone has the Read&execute, List folder contents and Read right on below folder.
C:\Trend Micro\Control Manager\WebUI\download. - Restart the DefaultAppPools in IIS Application Pools.