vxdiag vcx nano gm gds2 No TIS Connection & No Valid Lease found?? No TIS connection available: this error was caused by a missing patch. Download and run GDS2 from patch here disk.yandex.com/d/dTT8d9YvQuejdQ No valid lease found error: run the GDS2 app from the desktop icon not from the vx manager. once you update the licence you close vx manager and then look for the “GDS2” icon which should be on the desktop and double click that to run gds. https://www.vxdiagshop.com/wholesale/vxdiag-vcx-nano-for-gm-opel.html