In trying to bring my parents' computer up to date, software-wise, I have discovered that it locks up after about a minute of trying to establish a network connection after connecting it to my router.The machine is pretty old (Duron 950, XP Pro with SP3, 384MB RAM) but I never ran into any issues with networks or routers when I was running similar PCs back when. The NIC is using a Realtek chipset and I haven't been able to update the driver, which was my first thought. Any ideas?