Someone assisted me this morning with one issue related to Reporting Services in SharePoint Integrated mode: SharePoint Reporting Services - NLB issue
Now I seem to have another issue.
The post above describes the environment. Basically, I have a 2 web front end server farm with some other application and search servers.
The way the environment is configured is:
SERVER1 WFE AND SQL REPORTING SERVICES
SERVER2 WFE ONLY
We use Network Load balancing between these two servers. Sometimes, when browsing to reports the reports fail and we get a error on the ULS Logs for SERVER2 as follow:
System.Net.WebException: The request failed with HTTP status 401: Unauthorized.
Also, when browsing directly to the repots on SERVER1 (without using the DNS Load balancer URL), everything works fine. Browsing directly to the reports on SERVER2 gives the above error message.
I suspect a issue with Kerberos since Browsing directly to SERVER1 causes only 1 Hop where SERVER2 will cause a duoble hop.
This might also be a issue with NLB (We use a Cisco Hardware load balancer)
Any ideas on how I can identify and troubleshoot the problem?