I have a small farm running MOSS 2007 Ent 32 bit, Windows 2003 R2. Farm = 1 Web/app server (VM), 1 Search Index server/app, hosting CA (VM), 1 SQL 2008 on Server 2008 (P). This farm has multiple web apps that are not experincing the problem. The problem web app is extended and using ADFS\CAC authentication, however; I do not see how that can be related as the other apps are all configured the same way. Problem: Twice a week one of the web apps stops serving pages, there is no descriptive error only "Page Cannot be Displayed". To resolve the problem I have to reboot the web server, restarting IIS will not resolve the problem. What is odd to me is that I am not seeing the problem in Test\Dev nor are the other apps on the farm having the problem. There are some .Net errors in the EVT logs, however; they referencing the other web applications that are not having the problem. I do have Event Throttling set "All"~ "Verbose" and I do not seem to be trapping the "trigger". Any help would be greatly appreciated this is a tuff one. Regards, Dennis

Hi Dennis White, First, I would like to confirm the following information with you before we begin to troubleshoot the issue: Did all users encounter the same issue? Could you enable the IIS log, try to reproduce the issue, then post the error information into the forum for further analyze. How to enable logging in Internet Information Services (IIS) http://support.microsoft.com/kb/313437/en-us Next, If you try to use the IP address of the SharePoint server, what is result? After that, check whether the issue is related to the network. Then, try to change the EnableTCPA & EnableRSS to 0 from registry on both the servers, then check the effect. Information about the TCP Chimney Offload, Receive Side Scaling, and Network Direct Memory Access features in Windows Server 2008 http://support.microsoft.com/kb/951037 Finally, you can use the following tool to check whether you have performance issue: Microsoft Best Practices Analyzer for Windows SharePoint Services 3.0 and the 2007 Microsoft Office System http://www.microsoft.com/downloads/details.aspx?familyid=cb944b27-9d6b-4a1f-b3e1-778efda07df8&displaylang=en sharepointbpa.exe -cmd analyze -substitutions SERVER_NAME CentralAdministrationServer where "CentralAdministrationServer" is the server name for your SharePoint Central Administration. It is important that SERVER_NAME is included in the parameters capitalized and that CentralAdministratorServer is replaced with the server name that is running SharePoint Central Administration. After the analysis is complete, open sharepointbpa.report.htm in a web browser. Post the result into the forum. Regards, Rock Wang Microsoft Online Community Support