Home > Credit Card Processing > Shift4 Credit Card Processing > Shift4 i4Go V2 > Shift4 i4Go V2 Errors
Error:
Response: 502,299,9862
Failure
This error is the same as the standard Shift4 error 9862 found here: Shift4 Error Codes
One common cause of this error is an invalid public IP address. This can be caused by a faulure to obtain the current Public IP address or the IP address in the file PublicIP.txt is incorrect. This can happen due to intermittent internet connection issues or manually saving an IP address that's incorrect or changes often. Many businesses benefit from a static public IP address and if your business is taking credit card payments with Shift4 you should consider it.
Response: 299,1001
This error is the same as the standard Shift4 error 1001 found here: Shift4 Error Codes
Please contact Shift4 for assistance. It's possible that they are having technical problems.