Ok here goes nothing!! again (LW won't open)

[Beachbumz327]

Hi, Im a noob to this forum site but not a noob as far as LW is concerned. I have recently moved to S.C and am living in an apartment complex that is all connected through the same IP which is supposedly cable internet. I have no router ( any more) and no modem. My ethernet cable plugs directly into the wall and then into my pc. I have gotten on LW since moving but dl's were very slow. Now it won't do a thing..I recently installed AVG anti-virus protection and as far as I can find Im only running windows xp firewall which LW is allowed on. BUT!! when I read the thread(s) about checking for the port to be open..the webpage said it could not be found. Does this mean my ISP has it closed, can I open it? what should I do now? I have re-installed java and LW both to no avail. At first LW showed that I just couldn't connect to the network now it won't even bring LW up on my screen when I click on the icon...please help! TIA