Think about things then. If you're getting no entries in the error log are you getting entries in access log; ie is traffic getting through from your client wherever it is to the actual server.
Perhaps a "tcpdump port 8080" to see if traffic is ACTUALLY hitting the box. If not, your problem is further back.
Whilst this wont cause a page not to be displayed, particularly if you are connecting by ip address, you should also check your dns because the fqdn in your log does not resolve.