VC runs, but S4_OP_STATE: Interface Down
I have a strange problem in RS 4.0 (Build 2461) since the last security update on my pc. I can start the virtual controller and it runs well. I can start the Teach Pendant everythings seems fine. But in RS the start window is still open and in the Log the message "S4_OP_STATE: Interface Down" is displayed.
I also have disabled the firewall and reinstall the RS, but still the same.
Do you have any solution?