Devices from S3 hawe the same error.

Hello all,I'm new to KNX. In the ETS program, have a problem when I want to download RC.tp (Room Controller) to KNX Virtual. After putting the device in programming mode, I get an error:

1) "Download Failed"

When I put the device in programming mode and turn it off manually, I get an error;

2) Failed to connect.

I tried to turn off the programming mode in different intervals 1 sec 2 sec, etc. but always the same error.Any help?

All Devices from S3 hawe the same error.