We are having the same problem as described by Herbert. We have working environment as
user <-> internet <-> load balancer (SSL) <-> web server <-> app server <-> db server
We have only one server in load balance environment for now. When we try accessing website /sitefinity with secured backend pages, we are getting redirect loop error. If I disable https on website backend, everything works fine.
Can you please advise what may be going wrong. We are using Sitefinity 8.0 in multisite mode.