Final solution: Change the router.
Today i change my BTsmarthub to TP-Link Archer VR900.
After following the quick installation guide for Archer VR900, all my devices load pics on Pinterest successfully!!
(i don't even need to change my DNS)
I suspect that a lot of issue are caused by the way the home hubs work (or don`t).
I assume you are still getting good wireless coverage?
Yes~ still it's kinda of surprising that the hub is the reason causing this issue... since the review on this ver of smartHub is so awesome 😛
Yes the coverage is about the same~ slightly better in some rooms but not others. So I'll say it feels like 5% coverage improved. 😄
Don't forget reviews are conducted in (mostly) ideal conditions which aren't replicated in the "real world".