Hello again RR, I am having an issue with programming of BK KNG CMD radios. I can get the radios to talk with the computer but not the programming software. All radios and the software are brand new. I think I've found out that this is kind of a two step process. Step one being to update the firmware on each radio to match that of the programming software. The radios came with firmware 5.3.0 (for whatever reason), and have to be updated to at least 5.5.0. I am able to successfully connect the radio and place in programming mode to accomplish this part (via the Lightning Light updater), which makes me think that my problem is not a driver issue. Once the firmware is updated however, I am unable to connect to the radio in the RES software. Any thoughts? I parsed this document in detail to try to work through the answer with no success: https://www.bktechnologies.com/wp-content/uploads/pdf/RES Training.pdf. Any help would be appreciated!