Hey Tom,

It seems like this issue our customer encounter this recently, they webhosting provider already figure out how to prevent this.

Perhaps you can send this info to your webhosting provider and see how it goes?
-> http://stackideas.com/forums/auto-post-facebook-the-connection-was-reset-while-sign-in-with-facebook-account-first-and-grant-the-application-access#reply-219974

I will but it wont be until later this week before I can get to it. I'll advise

Actually regarding this issue is nothing we can do here

By the way, keep us updated then after you consult with your webhosting provider.