Unable to obtain IP adress

I bought a wireless access point today, as my wireless router broke a while back and I decided I want to start playing on Xbox Live again. So my network looks like this, An Arris Modem, connected to my old wireless router(which seems to still function at the wired level) which branches off to my computer and the WAP.

On my Xbox and on my DS I am unable to obtain an IP address. I tried manually setting the IP on the Xbox, and managed to get it to work once, but failed at DNS, even when I put that information in too. Trouwjurk Lange Mouw If so, what are my options? Should I return it and get a wireless router, or can I make this work somehow.

Note: I get the same problem when I try and connect the Xbox directly

All online games are finnicky with IP addresses. I would go to the router config page,

(usually 192.168.0.1 or 192.168.1.1, sometimes 192.168.2.1) depends on router and find a static address assigning feature. then figure out what your Xbox's MAC address is. I think the 360 has a network configuration page that will show it. If it won't, figure it out by connecting the xbox to the router again and see what MAC/Physical addresses are there before and after connecting the xbox to the router. Then, get that static DHCP page back up and assign a permanent IP to the MAC Address of the XBOX. Try connecting again. If that doesn't work, go to the 360's network configuration page and manually enter the settings found Lange Cocktailjurken on the router for your xbox's ip address and stuff.

Also, ensure that port forwarding is enabled as much as Xbox wants on your router. I think that microsoft Sexy Cocktailjurken must have some kind of documentation on that. but that's after you get your IP set up.

Note: The "primary" router can be an actual router, a software gateway like Microsoft Internet Connection Sharing, or a server connection that has the capability to supply more than one IP address using DHCP server capability. No changes are made to the primary "router" configuration.

Configure the IP address of the secondary router(s) to be in the same subnet as the primary router, but out of the range of the DHCP server in the primary router. For instance DHCP server addresses 192.168.0.2 through 192.168.0.100, I'd assign the secondary router 192.168.0.254 as it's IP address, 192.168.0.253 for another router, etc.

Note: Do this first, as you will have to reboot the computer to connect to the router again for the remaining changes.

Disable the DHCP server in the secondary router.

Setup the wireless section just the way you would if it was the primary router, channels, encryption, etc.

Connect from the primary router's LAN port to one of the LAN ports on the secondary router. If there is no uplink port and neither of the routers have auto-sensing ports, use a cross-over cable. Leave the WAN port unconnected!