Is this issue solved ?
I'm facing same issue, i'm using Sitefinity 7 in reverse proxy infra
client - internet - load balancer (ssl offloading) - web server(ARR 2.5) - app server - db server
I have tried to implement Sitefinity load balancer settings, sticky session, change ARR to url rewrite but the issue still persist
Ya, once I completely disabled the cache in our IIS ARR server which is acting as a reverse proxy the problem went away. I also have a SharePoint environment running claims authentication which passes through the same proxy and the cookies are not cached so I do wonder if Sitefininty doesn't properly mark the authentication cookies to not be cached.
Specifically what I did is went into the caching settings on the ARR farm and set the memory cache duration to 0 and unchecked enable disk cache and set query string support to do not cache. Also from the root IIS server node i went into output caching -> edit feature settings and unchecked all the boxes.
I had no actual need for caching for any of the sites passing through my ARR server so completely disabling caching was acceptable for me. I don't remember if i tried just disabling it in the farm first but i feel like I may have.
We are running version 8.2 and the issue still persists after implementing the above mentioned resolution. Please help.
I am now running 8.2 behind my ARR proxy and have not had any reports of this happening since disabling all the cache on ARR. Although just because no one has reported it doesn't mean its not happening so i'll have to do a little testing to try and be extra sure. I would be interested to know what you found out about this so I can double check my own systems.