I'm having the same error. I've tried everything is it's still not working
Store name: storename (tried with storename.com and www.storename.com)
store url: http://www.storename.com
secure url: https://www.storename.com (tried with leaving it empty but enabled SSL and also tried with https://www.storename.com/admin). Need help urgently since all schedules are not running.
I'm using Nopcommerce 4.0
Here are the error log
Log level Error
Short message The request was aborted: The connection was closed unexpectedly.
Full message System.Net.WebException: The request was aborted: The connection was closed unexpectedly.
at System.Net.WebClient.UploadValues(Uri address, String method, NameValueCollection data)
at System.Net.WebClient.UploadValues(String address, NameValueCollection data)
at Nop.Services.Tasks.TaskThread.Run()
IP address Customer Page URL
Referrer URL Created on 5/10/2018 12:03:07 PM
And
Log level Error
Short message Error 404. The requested page (/scheduletask/runtask) was not found
Full message
IP address 209.132.252.10
Customer [email protected]Page URL https://www.storename.com/scheduletask/runtask
Referrer URL
Created on 5/10/2018 12:07:11 PM