Hi
you all are behind the 'NAT' ( Not directly connected to Internet ) .
Every ISP they will maintain firewalls , they will allow ( Inbound & Outbound traffic ) only 0 to 1024 ports only. Remaining ports they will block to avoid the attacks .
My ISP has confirmed there is no blocking of 1026-1029 at their end, appears something is up with the Almond+ setup....
I think your ISP allows Inbound traffic only. Can you please check with your ISP, are they allowing Inbound & outbound traffic or not