Yes there is a firewall and yes its configured to all that server to talk all it wants to the internet.
The files LUA fails on I can open a webbrowser and manually download, so its not being blocked by the firewall, however LUA just chokes on it for some reason.
From the LUA logs it has all these files (truncated of course) going through them all checking them it succeded on every file that was small and if it was large it failed.
2010-03-10 11:10:52,617 [pool-2-thread-2] INFO com.symantec.lua.handler.RequestHandler - About to join thread for file : 1260836428jtun_nav2k8ennful25.m25
2010-03-10 11:10:52,617 [pool-2-thread-2] INFO com.symantec.lua.handler.RequestHandler - About to join thread for file : 1260836428jtun_nav2k8enn05m25.m25
2010-03-10 11:10:52,617 [pool-2-thread-2] INFO com.symantec.lua.handler.RequestHandler - About to join thread for file : 1260836428jtun_nav2k8enn11m25.m25
2010-03-10 11:10:52,617 [pool-2-thread-2] INFO com.symantec.lua.handler.RequestHandler - About to join thread for file : 1260836428jtun_nav2k8enn04m25.m25
2010-03-10 11:10:52,617 [pool-2-thread-2] INFO com.symantec.lua.handler.RequestHandler - About to join thread for file : 1260836428jtun_nav2k8enn08m25.m25
2010-03-10 11:10:52,617 [pool-2-thread-2] INFO com.symantec.lua.handler.RequestHandler - About to join thread for file : 1260836428jtun_nav2k8enn09m25.m25
2010-03-10 11:10:52,617 [pool-2-thread-2] INFO com.symantec.lua.handler.RequestHandler - About to join thread for file : 1260836428jtun_nav2k8ennful25.m25
2010-03-10 11:10:52,617 [pool-2-thread-2] INFO com.symantec.lua.handler.RequestHandler - About to join thread for file : 1260836428jtun_nav2k8enn02m25.m25
So hence the question, can i force LUA to exibit the same behavior as SEPM and break any large file into smaller chunks which makes this whole thing work better for our connection.