Some background: I have a two store installation of NopCommerce 4.0 running on IIS 8.5. To handle the multiple SSL certs, I am using SNI. Everything appeared to be working correctly.
The site has been live for about 5 days now and I've noticed that none of the Scheduled Tasks have been running. I've run these tasks manually. The Delete Guests and Send emails tasks work when manually triggered but won't run automatically. The "Keep Alive" task fails with a "The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel." error. Looking at my Error Log, I see that error happens close to every minute (the scheduled frequency for send e-mails).
I'm not sure if I set up my bindings incorrectly or what else could be causing this issue. Any suggestions would be most appreciated.
Thanks!