Some pages can't establish secure connection behind SENSE router
I can't establish a secure connection to https://stats.foldingathome.org, no matter which browser I use. I tried Firefox, Chrome and Edge.
I tried these usecases, which show that the router IMHO must be the problem:
Laptop (Win10), SENSE application enabled - no connection
Laptop (win 10), SENSE application active, but all security disabled - no connection
Laptop (Win 10), SENSE application deinstalled - no connection
Mobile device, on WiFi and behind SENSE router - no connection
Mobile device, on mobile data and thus not behind SENSE router - bingo, connection
I have not encountered this problem on any other website so far.