Try this. I got it from someone much smarter than me.
Correct DNS settings (using your router as the DNS Server)
To use your router as the DNS server, change the IP Address to match your routers IP Address. The routers IP address is 192.168.1.1, so change the DNS server to 192.168.1.1.
IP Address 192.168.1.100
Subnet Mask 255.255.255.0
Router 192.168.1.1
DNS 192.168.1.1
Correct DNS settings (using OpenDNS)
If using your router as the DNS server fails, or if you prefer to use a public DNS server, use a DNS server hosted by OpenDNS. OpenDNS is a safer, faster, and smarter way to navigate the internet. To use OpenDNS as the DNS server, change the IP Address to 208.67.222.222 or 208.67.220.220
IP Address 192.168.1.100
Subnet Mask 255.255.255.0
Router 192.168.1.1
DNS 208.67.222.222
By changing the DNS settings on your Touch to point to either your router or an OpenDNS server, you should able to use your wireless network without any problems.