Did you maybe miss out on installing the firmware update for the store prior to the deadline? https://www.amazon.com/gp/help/customer/display.html?nodeId=202048

Did you maybe miss out on installing the firmware update for the store prior to the deadline? https://www.amazon.com/gp/help/customer/display.html?nodeId=202048000 https://www.amazon.com/gp/help/customer/display.html?nodeId=... Iirc they were disabling some old SSL stuff (either sha1 or weak ciphers) that the old firmwares relied on. If that's your problem you just need to manually update and it should work again.