Try to use the troubleshooting information in this help file to solve the problem.
Make sure that the network is up and running and that all network drivers are installed.
Prepare yourself for the questions listed below. Print and save system information, which contains answers to some of them. Crash dumps are also very useful if an Invoice module crashes.
A support technician is likely to ask you:
In addition, they will need information about the problem, such as: