I have upgraded to version 8.5. Searching through the Syslog page works fine for a while, but if you perform a query that takes a long time to complete, the page just clears all of your search specs. After this happens, the refresh and printable version buttons take you to a generic 404 "The page cannot be found" page. This renders the Syslog page useless.
It appears that when this happens, the page posts to /servername/orion/Syslog.asp instead of /servername/NetPerfMon/Syslog.asp.
I am able to resolve this issue by performing a "Clear Web Cache"...until I try another query that takes "too long". I have installed Hotfix 1 with no change.
Any ideas?