WD Lab Report is a Windows program for one laboratory computer. The patient list, the test catalogue, the bills and the saved reports are in a database on that PC. They are not sent to a cloud account.
What does not need a connection
Book order, result entry, printing and the ledger run locally. A power cut to the router does not stop the person at the window from taking a payment or the bench from typing a result.
What does need a connection
The licence is checked when the program starts, and again about every 24 hours while it stays open. If the server cannot be reached, the desk keeps working for 15 days from the last successful check. After that, a lock screen asks you to connect and choose Check again. The key is not deleted.
WhatsApp uses the internet as well. The laboratory links its own phone from System, WhatsApp. Microsoft Edge or Google Chrome has to be on that computer for the QR code.
The day-to-day screens are named in the user manual.