Just working on a new install on a Windows 2008 R2 system with the newest toolset 8.53, and the Process Scheduler fired up great and runs nicely, but when I tried to run SQR, I got an (SQR 1803) CONNECT failed error.

It turns out the in 8.53 toolset, the SQR uses the 32 bit ODBC to connect to the database. After running the program: c:\windows\SysWOW64\odbcad32.exe and configuring a 32-bit connection the SQR ran without a problem.