Arturo Dergal
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IPN Handshake Error 406 Response Paypal IP 173.0.81.1
Arturo Dergal replied to darrensweb's topic in Using WHMCS
Hello, do you fixed the problem ? -
Hello, for no apparent reason my IPNs haven't been working for 10 days, I have the error IPN HANDSHAKE INVALID, I've already looked into changing the charset, the firewall, the hosting, updated the WHMCS, contacted paypal, WHMCS, and sucuri, which takes care of protecting my site, but nothing has helped. If anyone has had this problem, I'd be delighted to hear from you.