SENSE Router seems to block Amazon Alexa (Echo) access to Amazon "credential locker service".
My Amazon Echo Dot (3rd gen) often stopped or eventually (self-) restarted.
I surveyed F-Secure SENSE Router app. on my Android phone, and found many "Block" for "Anti-Tracking".
I also found SENSE Router blocked access to "credential-locker-service.amazon.jp". When I put the site to my personal white list, the number of SENSE Router blockage is dramatically reduced.
Somebody, please tell me whether this "credential-locker-service.amazon.jp"(Japan) or "credential-locker-service.amazon.com"(USA) is safe. I checked the address in some web site search as Google, Norton and Aguse, and they all answered "Safe".
I also would like to ask F-Secure will remove those sites from their black list, once F-Secure confirm it's safe.