New Post: PayPal AutoReturn ERROR

HI,

I am encountering the standard PayPal AutoReturn ERROR on a site that has been operational for several years, and has had no DNN updates - still sitting at 5.06.08.

The windows server it runs on has been patched and has plenty of free drive space (several GB).
I have recently purged the DNN event log table of all but the last months events, as DNN was having difficulty displaying the events.

I note the documentation says in section l: "This is a problem with the DNN application's trust level on the server."

I looked into this and found the DNN web configs trust level was commented out, and the trust level via the IIS 7 GUi was set to full.

I have tested this by changing the gui to high, and the web config to full (at separate times restarting the webserver service and the DNN application each time), but there was no change.

I have also reviewed these similar Discussions, but the solution eludes me.

PayPal AutoReturn ERROR
Jul 15, 2011 at 4:04 AM
https://nbstore.codeplex.com/discussions/265202

and

PayPal AutoReturn ERROR
May 21 at 3:29 PM
https://nbstore.codeplex.com/discussions/546047

and
Issue with payments
Dec 6, 2013 at 3:50 AM
https://nbstore.codeplex.com/discussions/472056

This is a production server, can anyone offer assistance?

regards
theTimp