500 Internal Server error session wd_application has expired

Question

Hi.
We have developed a WebDynpro Application which is integrated with a Page and iView in the Portal System EP6 (WAS 6.40 SP 11) ==> 2 Server Cluster enviroment.
The iView has Cache-Level "session" and Client-side Caching "Yes".
We tested locally and also on the Target System without any problem.
But in a specific case some clients has the error "500 Internal Server error session <wd_application> has expired".
Releasing errors functionality:
The error occurs, when the user releases the search method of the View instead of the Events onclick by the key Enter (onkeypress).
<a href="javascript:void(0);"
          onclick="return me.h_e(event,window,this,'Button','BUTTONCLICK',{'event':'event','ControlId':'KLDI.OrgSearch_v.SearchButton'},'',true);"
          <b>onkeypress</b>="return me.h_e(event,window,this,'Button','BUTTONCLICK',{'event':'event','ControlId':'KLDI.OrgSearch_v.SearchButton'},'',true);"
          class="urBtnEmph urV" id="KLDI.OrgSearch_v.SearchButton" ct="Button" style="white-space:nowrap;">
<span class="urCaption" ct="Caption">Suchen</span></a></td>
We received those errors acctually only form clients who are running Windows XP. But not on every client who runs XP.
Has anybody any idea?
Thanks
Vincent

Answer 1

Hello,
we run into the exactly same problem. The environment is also a 2 server cluster environment.
Sometimes users has the error "500 Internal Server error session <wd_application> has expired".
But it is not for specific users.
Has anybody any ideas?
Thanks
Matthias