I've explored every avenue I know available to me to solve a problem when connecting to an Oracle instance from SSRS.
I receive the following error:-
"Attempt to load Oracle client libraries threw BadImageFormatException. This problem will occur when running in 64 bit mode with the 32 bit Oracle client components installed."
I realise that this looks like a driver issue, and as such I have made sure that both the 32 and 64 bit clients are installed on the server running SSRS, as well as the Oracle server.
To date I have been unable to find an explanation or resolution to this problem, and would greatly appreciate any guidance.