Summary
The following error appears in the Apex Central management console:
HTTP Error 500.19 (Error Code 0x8007007e)
The requested page cannot be accessed because the related configuration data for this page is invalid.
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The issue still exists even after following these troubleshooting steps:
- Restart TMCM/Apex Central Services.
- Reboot the TMCM/Apex Central server.
- Open IIS Manager > Default Web Site > Manage Website > Advanced Settings > change the application pool from DefaultAppPool to TMCMApplicationPool > click OK.
After further investigation, this issue occurs when the TMCM/Apex Central and Microsoft Windows Server Update Services (WSUS) programs co-exist in the same server machine.
The XPress compression schema module gets installed with WSUS is defined globally and try to load in every Application Pool which in result, the Apex Central IIS application xml cannot be read with the Xpress compression active.
To verify if the XPress compression is installed, do the following:
- Go to %windir%\system32\inetsrv\config\
- Open applicationHost.config using Notepad.
- Look for the following:
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To resolve the issue:
- Open the Command Prompt as an Administrator.
- Change the directory to "%windir%\system32\inetsrv\" and type the following:
appcmd.exe set config -section:system.webServer/httpCompression /-[name='xpress']
- Access the Apex Central management console.
The Apex Central management console should now work without issue.
