linksys/vista/ffxi.. who is the culprit?

[Blaez]

Hey everyone, in a pickle.

Alright, my girlfriend and I are both playing ffxi together at the same time. I play on my 360 and she uses my new computer(vista os). we run the cable from the wall, to a box, from the box to a linksys and then a cord from that to my pc,xbox, and the laptop. I have no problems with the 360 on ffxi unless it goes screwy on the pc. It's not the internet because i can get on xbox live I.E. on both laptop and pc. FFXI on my pc will occasionally error and close out. doesn't give a reason, just says its an error. I have tried everything and it has came down to linksys, vista or ffxi. i have the vista pol and all of that. it's a 3gb ram comp with loads of memory. I just have no idea why it closes out. It will work for hours even days fine. Then randomly it will just butt up for a long time and i have to fiddle with everything. any ideas on how to fix it?

[Susurrus]

I can't really specify it down much but I can give you something to try.
In the linksys router there is an option to enable/disable uPnP. I find that actually ENABLING it likes to cause network errors when I turn computers/consoles on that connect to the internet. I don't know maye I have a crappy router that needs to be replaced, but something for you to check.