Membership Pro Auto Login not working

As per the title, I have enabled Auto Login in the Configuration page but following sucsessful payment the buyer is returned to the website and sees the Subscription Complete page instead of their appropriate membership page. Am I missing something here? I thought perhaps the Access and Subscribe Access choices in the Plan settings might be what makes this happen,

Hi there Tuan

Thanks for your response And for clarifying what the Access and Subscribe Access functions mean.

In reply to your questions, I'm using the PayPal option and I'm using the sandbox accounts to test the service and, when a payment is transacted this way, it works fine. the transaction goes through the PayPal cycle and returns me to the Subscription Complete page.

Looking at the Subscription status, I see a green tick which I assume means Active.

Looking at Auto Login, I have checked and can confirm that I have not configured the system to require users to activate their account. Upon successful subscription, the user is emailed a confirmation of their account details but it is not an activation email.

I can also confirm that the system is not logging the user in at all.

Let me know if you would like me to send you login credentials so that you can look yourself to see if I have anything incorrectly configured.

thanks for your help
Chris