If Using a Network License Server w/ USB Hasp Key
If a network license key is in use, port 475 will also need to be open on the network license server. For users working remotely, it is recommended to run a VPN to connect into a machine within the office network to run SignalPro. It is not recommended to run SignalPro on a remote machine that is accessing the network license server over VPN (any unreliability in the VPN connection may cause the license sessions to be temporarily “stuck” on the license server).
Please see the section titled “Network Key Scenarios” in Licensing Scenarios.