isapi_redirect.dll fail in SSO on high cpu load

[Yun Feng Chua]

Hi, 

Currently using Tomcat 5.5 and isapi_redirect.dll 1.2.14 in IIS 6.0
Configure with IIS integrated authentication for SSO.

Notice that under high cpu load in the server, 100% util, the website prompt 
for authentication.
When the cpu load subsided, the SSO is working. 

Any ideas why it prompt for authentication under heavy cpu load?



thank you 

yun feng, chua