500 Error when creating a new Custom, Site to Site, or Analysis report

Document ID : KB000102720
Last Modified Date : 19/06/2018
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Error below is seen when creating a new custom report, site to site report, or analysis report.
500 - Internal server error.
There is a problem with the resource you are looking for, and it cannot be displayed.

When loading the browser locally on the NFA server it reveals a more detailed error:

Server object error 'ASP 0177 : 8000ffff'


D:\NETQOS\REPORTER\WEB\COMMON\../common/LegacyInterop.asp line 22

NFA all versions.
1. Right click on Computer, click Manage, expand Configuration, expand Local Users and Groups.

2. Select groups, then double click the "Administrators" group.

3. Click Add.

4. Change the Location to the local server and not the domain.

5. Then enter "IUSR" and click "Check Names" then OK.

6. Then right click on the \CA\NFA or \Netqos\ directory and select properties.

7. Select the Security tab, and add the IUSR account and give it full permissions.

8. Open a cmd prompt as an administrator and run "IISRESET".

9. Log back into NFA and see if you can create a new custom report.