NRGeti,
Thanks for the information - to get good responses you should give all the details that you just did so we know what you have done and what you have not done.
It is hard to guess what you have done and what you have not done so when we respond we usually start with the easy stuff first!
I have worked with Linksys devices for years - mostly with Dells and I find installing their software works best, since we now know that you have tried that I would contact Linksys support - they have always been great when I had to contact them in the past - it might be a bad driver or some other glich or if it just does not work with Sony - they are sure to know that!
Hope this helps!
E.A. Broda
CCNA, CCDA, CCAI, Network +