What made you do CS in college? What made you stay longer and get a MSc. ? Was there a specific subfield that really grabbed you? If the problems you're facing are too easy, consider going somewhere that would make you solve hard problems (more grad school, maybe?) ? I think answering those questions would be helpful in you eventually re-find your passion for coding.

But right now, you sound burnt out. Forcing yourself to code more probably won't help. Get out and do something different for a while. I bet you'd find the programming itch coming back after not too long.