Fast Charge Stopped working on 3 Samsung Phones

[AC Question]

Just this week, my family's 3 Samsung cell phones stopped fast charging. We have a S6, S6 Edge and S7. We haven't changed anything. They were working last week and not this week. I've checked the fast charging option. I've switched out cords and used different plugs. All of three phones charge at different places in the house.

This doesn't make sense why it stopped. Any ideas?

 

[amazingkyo]

using your own samsung charing cord and adapter to charge the wireless charing pad,it still not work? if they are the original samsung fast charger ?