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File Name	File Size		Posted by	Date
emailsiglogo.png	6.6 KB	open | download	Sajan Parikh	07/03/2013	Read message
smime.p7s	4.4 KB	open | download	Sajan Parikh	07/03/2013	Read message
emailsiglogo.png	6.6 KB	open | download	Sajan Parikh	07/03/2013	Read message
smime.p7s	4.4 KB	open | download	Sajan Parikh	07/03/2013	Read message
emailsiglogo.png	6.6 KB	open | download	Sandeep L	07/03/2013	Read message

i'd suggest you'll start with low-level-debugging:
- goto host1 and make a tcpdump port 8080 / tail -f against access-logs
of that server;
- make a request
- check., what happens to that request, e.g. where it "hangs"

you could also, just in case, make a "tcpdump port 808 and host host2" onm your nginx, just to make sure that nginx is sending the requests to the right server