If I connect my ps3 straight to the modem. Shouldn't it work?

It could be the size of the cable, although the problem you're claiming shouldn't have been caused by that (actually, most CAT6 cables can go up to 100m), unless there's a small break in the wire somewhere internally that still allows connection, but is intermittent, the only way to figure this one out is to replace the cable with a temporary cable that will preform the same function. Then you can attempt connecting the modem and hub with a shorter cable, if that works, then it's the length. And if that doesn't work, attempt to connect straight into the modem, if this works, then it's your wireless hub. And if that STILL doesn't work, close down ALL other tasks on your computer that require internet, and just try to use your web browser. And the FINAL option is attempting to replace your modem, but this is the last ditch effort.
I hope this helps!

if you are going wireless have you typed in the encryption to gain access to the router. in the setup of the ps3 does is ask for passphrase or encryption........ plus it seems it would want to search for available wireless connectivity.......but you may be going hardline with ethernet straight in to the ps3 then it should be almost an automatic type connection set up should be easy.....but the thing i have experienced is that not all modems are compatible with game stations...........there maybe a list of compatible modems for your system..... give me more info on how you are trying to acquire.....so i can further assist

Basically the PS3 wireless settings needs to be configures with the Netgear wireless router settings.
To test if the modem is connects to the Internet, connect a computer into the modem, if it works then the modem is configured correctly. If it doesn't work, then contact your ISP and get them to test your modem connection.
For details on how to configure the PS3 click on the WEB link :-
wii.php">http://fixhomenetwork.com/xbox-play-station-wii.php

Ok first off create a psn account online via computer, this is free of charge. Then after that connect your ps3 via cable to your modem. turn it on and access network settings. Then select internet connection settings, select easy. After it is finished select test connection. Should this time out it means you have a faulty connector somewhere, try checking your cables and the ports on the ps3 and modem. But if it states connected, back out and go to network via your ps3 dashboard then select sign in and enter your account info from your psn account.

The cable modem sometimes register the hardware MAC address of the connected device. So your PC may be registered and it won't accept the router now. Connect the WAN port of the router to your cable modem and power the modem off and on again. It should re-register the connected device and now your router should work.

once you connect to the modem you must reset the modem, unplug it for the power source for 2 whole minuets then reset the ps3 and this should solve ur problem

Yes you can do this. Refer to the Belkin website, on this link:
http://www.belkin.com/support/article/?lid=en&pid=F5D7230-4&aid=15&scid=0
There they teach you to configure your router to do the dynamic connection (bridge) that is needed in yours SpeedTouch modem (virgin)

Are you using a Cable Modem and a Router? I get problems like that when my Router is not working well. In which case I reset the Router (by unplugging it). Try connecting the PS3 straight into the Cable Modem, bypassing the Router.

I once had the same problem. What i did is that i booted the modem and the Ps3 (turned both off) and then turned them on. Then i went to the internet settings on the Ps3 and tried the internet connection check and it worked! I hope you have some help of this.