Getting Error : 4020 : Information received from an Invalid IP address

Question

I was using Sagepay form integration version 2.23 Then we need to add Token integration, so did the same what token_system_integration_guideline.pdf said and did Server Integration.. Now while registering token, I'm getting this status message

VPSProtocol=2.23 or VPSProtocol=3.00 
Status=INVALID
StatusDetail=4020 : Information received from an Invalid IP address.

Getting the same status error while doing payment transaction..

currently I'm working with test server account. i.e. https://test.sagepay.com/gateway/service/token.vsp

Answer 1

1. Login to sagepay Simuator portal at https://test.sagepay.com/Simulator/account.asp
2. click the red "Account" button in the corner，
3. add your ip address at "Valid IP Addresses for this Account" part.