Delphi CGI SQL query runs on one machine but not the other

Question

I have a console app running queries to a SQL Server. The SQL Server and the website are running on the same server (colocation). I have an image of the website on my local machine where a copy of the app runs connecting to the same SQL Server. The app will return the result of a SQL query from a text submission via a form:

<TEXTAREA id="SQL" ROWS=8 COLS=80></TEXTAREA>
<p>
<button onclick="submit()">&nbsp;Execute&nbsp;</button></p>

Example 1:

select * from table1

Running this on my local website or on the server will return the correct result.

Example 2:

select column1, column2 from table1

On my local website I get the proper result, on the server I get

server error 403 access forbidden

Local machine runs Abyss while server runs IIS. The console app makes requests to the SQL Server via the VPN wether it is running on my machine or on the server.

Both app instances use the same connection string. I tried to modify the server version by using the localhost IP (127.0.0.1) instead of the VPN IP but results were the same.