Hi all, I wonder if you are able to assist me. I have e-mailed PlanetCNC but they are not replying so I am left on my own to resolve it

I bought one of their MK3/4 controller boards plus a license for that board from them about two years ago, and was happily using it until just recently when the software now keeps saying that the 'license is missing or invalid'. I follow the instructions supplied with the license by PlanetCNC but even though it initially accepts it, within ten minutes it comes back with the same message and the red 'X' in the bottom right corner reappears

The license is specific to that board number, but nonetheless it is now not working. If anyone can help with this I would be grateful in the absence of any help from the manufacturer

Cheers

Les