osCommerce v2.3.1 and SagePay Direct: Error 4020: Invalid IP Address

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3 Responses

  1. Naomi says:

    I was having this problem when my website host changed my IP address and this solved it. Didn’t even take up to 2 mins! Thank you soooooo much!!! :D

  2. atomiku says:

    Glad I could help.

  3. DinkleFaceFool says:

    Thank you, it solved my problem! Putting it into Simulator mode allowed me to get the correct IP address. It differed from the domain that I pinged to get the IP from…

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