I've migrated from a Mac desktop to a linux laptop ( which has not been without some ongoing challenges ) and I'm constantly having to reset the s3d license on my linux machine. After some arbitrary number of resets, I get a message telling me that I've done to many resets and that I need to contact support before I can reset a license again.
I am not the first person to experience this problem. I've found several posts in this forum, going back to Aug 2015, describing the same problem.
So, it's the weekend and I'm doing some 3d printing. I'm almost finished with a long project and I need to tweak my design a bit and then, hopefully, print my final parts. Except that I can no longer use the slicer that I've painstakingly configured. Think about that for a moment. I can not use a product that I paid for because of a flaw in the way that the product's license is enforced, and this flaw has existed for at least 4-1/2 years.
I used several other slicers before settling on Simplify3d, and I've been using it long enough to have upgraded and paid for another license. I did switch to Cura for a bit ( when I bought a Luzbot Taz 6), which Cura is probably where I'm headed again. For me, it's is almost as useful as s3d. Actually, at the moment, a properly configured Cura install would be infinitely more useful to me than s3d.
And therein lies the rub, so to speak. If I once again go through the effort of configuring Cura for both of my printers, and tweaking and maintaining it's settings for my filaments and workflow, it's doubtful that I'll ever use Simplify 3d again. It's just not worth the hassle of being shut out of my workflow. All of which makes me wonder how the company manages to compete...
-- slicerless in Nashville