When logging into the Web Console you receive the error:
"Unable to validate user with the database".
With Log events turned on you will receive the following Event Viewer Error:
"OracleSQLServerName: TNS:could not resolve the connect identifier specified."
- Right click on the C:\Oracle folder (the root folder where your client is installed) and choose Properties.
- On the security tab add the local machine's Users group (or if you prefer, add the IIS and ASPNET users individually). Grant Read & Execute, List Folder Contents and Read privileges.
- Click "Apply".
- Click "Advanced"
- Check "Replace permission entries on all child objects ..."
- Click "Apply". This will take a while to propagate the security grants down to every file and folder of the Oracle client.