ESS pages unvisible through portal and visible through direct application
We have installed ESS on our portal and it behaves very strange.
First of all our portal version is 7.01 sp 3 and ECC version is 6.
I have added to my user ESS role and when I try to access the main page of the role or every other page it behaves this way : I see that the webdynpro application starts its execution process (the "clock" appears) after few seconds there are few round trips to the server and finally I receive "Navigation to the webpage was canceled" page .
When I tryed to access ESS on the same server by the direct link :
(I have taken the url from another portal installation and just changed the server address.)
All pages have been opened as they were supposed to.
When I am trying to preview ESS iviews or pages from the portal content there is exactly same behavior - it starts to run and then navigates to page "Navigation to the webpage was canceled".
In HTTP Watch I have seen that the last request that was performed is request to R3 server and it returned result : NS_ERROR_CONNECTION_REFUSED.
May be someone can help me to understand what I am doing wrong.