Paypal IPN calls failing since last week

[oldford]

My user upgrades through Paypal started failing, looks like starting last Wed.

Looking at Paypal IPN history, there are several payment showing as either "failed" or "retrying" and those users are not getting automatically upgraded on my forum.

I have confirmed with Paypal that IPN is indeed on. The notification URL hasn't changed (still https://mysite.com/forums/payment_callback.php?_xfProvider=paypal )

The payments are being made, but the IPN notice is just not reaching my site...

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Paypal IPN calls failing since last week

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