I live/work in a shared space with a wireless internet router. I also have a private wired network based around a 3com gigabit switch that I use for my work PCs. This is for both the speed and to deliberately keep the work PCs off the internet, apart from one laptop which I use to access both networks. This has worked perfectly for a couple of years, until now. Recently I have had problems connecting my laptop to both the internet and my separate wired network at the same time. Whenever I plug in the wired network cable the internet stops working. The instant I pull it out the internet works again. I have noticed that when I plug in any pc to the gigabit switch it has problems assiging an IP, so I have to do it manually. DHCP works for the wireless network, though. The IPs for the laptop are: wireless: IP Address: 192.168.1.101 Subnet Mask: 255.255.255.0 Default Gateway: 192.168.1.254 wired network: IP Address: 192.168.0.3 Subnet Mask: 255.255.255.0 Default Gateway: 192.168.0.1 Also, I can connect to the wireless router admin page at the gateway address (192.168.1.254). So the wireless network itself works from the laptop. just not the internet. I'm using a d-link gigabit cardbus adapter in the laptop, but I have the same problem using the dell's built-in network port. Also, this happened both before and after a fresh install of XP. Any ideas?

I'm surprised that you had it working in the first place. It's supposed to be one enabled interface at a time. How do you know when a politician is lying? His mouth is moving.

hi - who says that? I can assure you it worked fine for ages. It only stopped working in the last few weeks. I thought it had something to do with installing zonealarm around that time but a complete reinstall of windows didn't fix it.

I'm not saying that you didn't have it working. I'm just surprised that it was. I did a quick search on Google. Someone recommended removing the default gateway from the wired NIC. How do you know when a politician is lying? His mouth is moving.

Brilliant! that seems to work. Thanks very much. Not sure what you searched for because all my searches were fruitless. ah well.

Hey, I'm glad it worked. I learned something myself. I searched for: wired & wireless at the same time. How do you know when a politician is lying? His mouth is moving.