@MartnD Have you checked each of the bulleted items in the Troubleshooting section of our Remote Control documentation? I suspect that it’s likely one of these, particularly a mismatched IP address or port number, and if those match, perhaps the firewall issue also mentioned in the documentation.
Was the Windows PC that you downloaded and ran TouchOSC on the same PC which was running Depthkit? If so, were the IP settings set to 127.0.0.1? Were you able to receive OSC messages from that app in any other software like TouchDesigner (making sure that Depthkit and the other app are not using the same port at the same time)? If this local messaging on the same computer works, but messaging over LAN/Wi-Fi doesn’t, it’s likely a network, firewall, or IP configuration issue.
Please let me know specifically which troubleshooting steps you have tried, and I will be able to guide you to further troubleshoot.