Database connection failed: At Step 3

[owentech]

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I have seen a number of posts regarding this but none seems to have reached a resolution.
The installer keeps saying the database connection failed.
It shows the correct database and user, but the error persists even after changing the password several times.

I tried a test file that another user on this forum was given and it shows:

A: Test 123 Test
B: Test ??? Test

[Klemen]

What exact error message does the installer give?

[owentech]

What exact error message does the installer give?

It was saying Database Connection failed.

I just tried again now to get the exact error message and it installed!

[Klemen]

That's strange. So it works now?