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TNS Protocol adaptor error - Reports Builder

MarcLafFeb 4 2026

Hi,

I'm using Reports Builder and Forms Builder 12.2.1.4.0 on Windows 11.

In Reports Builder, I'm trying to CONNECT to a DB (nmdsdev) and getting a TNS Protocol adaptor error (see below). But, from Forms Builder I can CONNECT to that DB with no errors.

My TNSNAMES.ORA is located in C:\Oracle12c\Middleware\Oracle_Home\network\ADMIN and I have ONLY ONE COPY.

Why is it working from Forms Builder and NOT from Reports Builder?

Thanks in advance,

Marc L

This post has been answered by Matej D. on Feb 4 2026
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Added on Feb 4 2026
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