Could it be that the dongle itself has become faulty?
When you attach it, does its little Notification Icon appear in the Task bar, saying "1 CmContainer connected"?
Also, does it appear as a drive named "CODEMETER" in the file system?
Loving Archicad since 1995 - Find Archicad Tips at x.com/laszlonagy
AMD Ryzen9 5900X CPU, 64 GB RAM 3600 MHz, Nvidia GTX 1060 6GB, 500 GB NVMe SSD
2x28" (2560x1440), Windows 10 PRO ENG, Ac20-Ac27