I have a weird problem. My laptop (Dell Vostro 1510 Vista Ultimate x86 SP2 beta) keeps reverting to a weird Default Gateway when I boot it up or come out of sleep mode on the wireless connection.
Wait, let me back up. A week and a half ago I was at a business training class in Boston when they let us plug into their wired LAN for internet access. I plugged my computer in to the network and couldn't get online right away. I had to do an ipconfig /release and /renew to get a proper IP, subnet and DG. Everything was fine and dandy when, about an hour into it, the IT guy walks in and asked if anyone had a computer named "vostro1510". I slowly raised my hand and he said "it seems your computer is taking over the network as a DHCP server and is handing out IP addresses". I was baffled. I'm not using internet sharing on either of my internet connections and I'm setup for dynamic IP. He checked on my computer and sure enough, when I clicked on Network Computers and Devices, a host of computer names popped up and apparently My laptop had taken over as the DHCP server. I've never installed DHCP server software and I dont think that Vista Ultimate has the capability. I could be wrong.
So I was barred from their network and now I have this problem. Whenever I come out of sleep or turn my computer on, the wireless connection defaults to the same Default Gateway that the aforementioned company was handing out. It's the number 22.214.171.124. I know, the 169 makes it seem like an autoconfig address, but it's not. So now when I turn on, I have to /relese and /renew to get it working. Why is this happening? I've searched and searched, but the only thing i've been able to find is about the problem that SP2 fixed when computers default to 0.0.0.0. Any ideas? Why is my computer remembering that obscure Default Gateway? It's been over a week since i was connected. Also, why is my connection specific DNS suffix still say the company name?