Sometimes the Rongta server times out. In that case, a verified safe source is the website (the makers of the printer driver).
While Windows often tries to install generic drivers, they rarely work correctly with thermal receipt printers. The official Rongta RLS1100 driver ensures: rongta rls1100 software download link
The software for the Rongta RLS1100 label printing scale is primarily managed through the Rongta Scale Sometimes the Rongta server times out
Connect your scale to your PC via Ethernet (LAN) or Serial-to-USB cable. rongta rls1100 software download link
Official software and drivers are primarily distributed through the manufacturer's support channels: Manufacturer Support : The official download portal is hosted by Rongta Tech Support