Web Suite and ArchiOffice/EngineerOffice reports show blank page on Windows Server 2012.
This is because of a missing aspnet_client folder under Default Web Site in Internet Information Services (IIS).
To add the aspnet_client folder in IIS, do the following:
1. Go to IIS Manager>Sites>Default Web Site.
2. Right-click on Default Web Site and select Add Virtual Directory.
3. Enter aspnet_client in the Alias field.
4. Next specify the Physical Path. Browse C:\inetpub\wwwroot\aspnet_client and click OK.
5. Verify that the crystalreportviewers13 folder is present under the aspnet_client folder.
For more on that, also check this KB article.