Hello,
I had same problem and fixed it by going to cPanle:
‘Elefante Administration Tools’ -> ‘Outgoing Connections Manager’.
When you visit it, you’ll notice (I did) some ‘Recently Blocked Connections’ and ‘Allowed remote IP addresses’ tables.
I allowed the (2) blocked connection and it worked.
Hope this help.
More by luck on my part than design.
Regards
Jeff