Hello everyone, Here's my setup: PowerMac G5 w/ latest version of OSX Connected to WRT45G WRT45G is for a network in my apartment, which is used almost exclusively by my roomates' two Windows computers. Lately, I've been having IP address conflict that has caused a lot of connectivity problems. The error message basically says "IP adress 188.8.131.52.101 [or a derivative of it] in use by [my mac address]. So, I've tried a few things, like manually assigning a IP address (system preferences->network->configure->configure ipv4 using manual dhcp), dhcp release & renew, turning off my router and cable modem, etc with no luck. I'm really at a loss--I'm a basic user, and I feel like I've exhausted my options and my ISP isn't of much help either. If you could give me some advice, that would be great!