Error: "Failed to contact Remote Data Access server: Sage 50 has lost contact with the current Remote Data Access company."

For broadband Internet, the FCC specifies 25 Mbps download / 3 Mbps upload as the minimum, although in System Requirements: Sage 50—U.S. Edition 2024 specifies 25 Mbps download / 10 Mbps upload as the minimum recommended Internet speed for best performance.
You can test your Internet speed at speedtest.net. If your Internet speed doesn't meet either of the above benchmarks, you may need to contact your Internet Service Provider to see if your Internet speed can be increased.
If you are using a WiFi connection, it is recommended to use a wired Ethernet connection, as this is more stable.
If your Internet speed is sufficient, see Processing Collaboration gets stuck in a loop when sharing a company on Remote Data Access and Error: "An error occurred synchronizing with Remote Data Access. This company is not synchronized and will close in one minute.".