SharePoint User swipe

I have a SharePoint site developed in MOSS 2007. My site is using SharePOint farm architecture which includes following servers in it

1. One Application server APP1
2. Two Database Server's mirrored (DB1,DB2)
3. Two Front End Server's (WFE1, WFE2)**

Recently we are receiving complaints from customer saying that when A user logging with his credentails a开发者_运维百科nd navigate to site, sub-sites in it. When he click on Home (Root site) Tab he certainly loose his active looged in session and he see the home page for another user with his access previllages.

Can some one tell me what is the root cause for this...?

Any help will be highly appriciated.

FYI: I have implemented caching to improve the performance of this site.

Thanks & Regards,

Sachin k

It seems to be the problem with setting of Load Balancer. Special care needs to be taken when SharePoint is load balanced under kerberos.

See:

http://sharepointspot.blogspot.com/2007/09/kerberos-load-balanced-web-sites.html

http://blogs.msdn.com/b/joelo/archive/2007/01/05/nlb-network-load-balancing-and-sharepoint-troubleshooting-and-configuration-tips.aspx

Specifically: To manage session transfer: Use ASP.NET SQL Session management so all sessions are recorded in a central location OR

Use affinity on the switch so that concurrent requests from a particular IP address within the same session go to the same target server