problem : connection reset

[majodo]

i tried to configure preauth.jsp with zimbra
but when i ask the page https://zimbraserver/zimbra/preauth.jsp
i receive a page with the message :
----------------------------------
The conncetion was reset
connection with the server was reset while loading page
----------------------------------
and in the URL i have this:
---------------------------------
https://10.22.28.40:8443/cas/login?service=
https%3A%2F%2F10.22.28.40%2Fcas%2
Flogin%3Fservice%3Dhttps%253A%252F%252
F10.22.28.40%252Fcas%252Flogin%253Fservice
%253Dhttps%25253A%25252F%25252F10.22.28.40
%25252Fcas%25252Flogin%25253Fservice%25253Dhttps
%2525253A%2525252F%2525252F10.22.28.40%2525252Fcas
%2525252Flogin%2525253Fservice%2525253Dhttps%
252525253A%252525252F%252525252F10.22.28.40%
252525252Fcas%252525252Flogin%252525253Fservice%
252525253Dhttps%25252525253A%25252525252F%
25252525252F10.22.28.40%25252525252Fcas%2525252525 2Flogin%
25252525253Fservice%25252525253Dhttps%252525252525 3A%
2525252525252F%2525252525252F10.22.28.40%252525252 5252Fcas%
2525252525252Flogin%2525252525253Fservice%25252525 25253Dhttps%
252525252525253A%252525252525252F%
252525252525252F10.22.28.40%252525252525252Fcas%
252525252525252Flogin%252525252525253Fservice%
252525252525253Dhttps%25252525252525253A%
25252525252525252F%25252525252525252F10.22.28.40%
25252525252525252Fcas%25252525252525252Flogin%252
52525252525253Fservice%25252525252525253Dhttps%252
5252525252525253A%2525252525252525252F%252525252
5252525252F10.22.28.40%2525252525252525252Fcas%25
25252525252525252Flogin%2525252525252525253Fservic e
%2525252525252525253Dhttps%252525252525252525253
A%252525252525252525252F%
.22.28.40%252525252525252525252Fcas%2525252525252
52525252Flogin%252525252525252525253Fservice%
%25252525252525252525253A%2525252525252525252525
2F%25252525252525252525252F10.22.28.40%2525252525
2525252525252Fcas%25252525252525252525252Flogin%
%25252525252525252525253Dhttps%25252525252525252
52525253A%2525252525252525252525252F%
.22.28.40%2525252525252525252525252Fcas%252525252
5252525252525252Flogin%
%2525252525252525252525253Dhttps%252525252525252
525252525253A%252525252525252525252525252F%

any help !

[majodo]

I resolve my problem:
at first i installed CAS Server on the same zimbra's tomcat instance
and however i uncomment the SSL section in the file server.xml.in
it does not work !
and when i install CAS in another machine (not zimbra machine) it works very good