Problem with dTIR and EV3 (similar #2950)

Dear ladies an gentlemen,
we are using EV3 and dTIR. When we are connecting the dTIR the block shows us a yellow “!”. We also tried to run the program described in #2950.

The problem appears with different sensors and also different EV3s.

The sensors work perfectly with the NXT.

It would be very nice, if you could help us to make the sensors work.

Best Regards

Picture with the “!”