I know this post may not be useful for most sizledcore readers but I think this can help some guys working on payment gateways and payment processes. I wasted six hours to fix this issue on one of my client’s machine and the source was the public IP address of my client’s machine. This error can occur if you are using the test payment gateway of Payex in your application for credit card payment processing during testing. Your error may be something like given as under:
07e59919006b443ba466ff5fcbe1cbec2011-01-17 21:43:34Merchant_InvalidIpAddress Merchant_InvalidIpAddressSource IP Address 220.127.116.11 is not valid for this merchant.(xxxxxxxx)
xxxxxxxx is the merchant ID provided by the payex administration team for test payment gateway and will vary in every case so please ignore it and focus on the error.