I have an issue where my server doesn't serve up pages on the initial request. I have to F5 (refresh) the page serveral times before the page actually gets served. This issue is on the server itself (not network related) because if I browse to the sites by their IP from the server, I'm seeing the same problem. There's nothing in the event logs that looks abnormal. I've tried iisreset and rebooted the maching, still seeing the same issue. This server has been online and serving pages for over a year now and this just started yesterday.
I'm really not sure where to start digging to resolve this? I also did a windows update yesterday, a virus scan and disk defrag, nothing resolved it.
any suggestions would be greatly appreciated.