When attempting to process a credit card, customer gets a pop-up message "Error processing card. Merchant setting requires RecordNo and Frequency."
Customer has version 13, and we installed the DSI ActiveX control specified by Mercury support.
- Customer's Internet connection is working.
- Customer has a valid merchant account with Mercury.
- Verified Merchant ID is correct in Settings -> Payment Methods -> Mercury.
- Verified customer has .NET framework installed (versions 2.0, 3.0, and 3.5 are present).
Looking for further troubleshooting suggestions.