Forum Discussion
Altera_Forum
Honored Contributor
8 years agoTry programming the FPGA with the original .sof that comes with the DE2-115 CD. There's a 'factory' or 'default' image folder (or similar) on the CD. This should clearly program into the board and should do so from any version of Quartus.
If that fails try changing your USB cable. Cheers, Alex