Replacing old wireless router...having trouble setting up.

Question

I just purchased a Airport Extreme to replace our aging 802.11b wireless router (made by Microsoft :P) and can't seem to get the new one working.
I'm using Cox service so they have things running via DHCP. I liked how all my devices were set up to assign IP addresses of 192.168.2.x, which is easy for me to remember.
I tried to set the AE to similar settings as my old one but tells me that my DHCP starting and ending values are not valid. I'm also not sure of the IP address of the unit itself and the difference between that and the router address?
The status is green lit and the network diagnostics is saying it's a ISP/Internet/Server issue.
Message was edited by: Raymond So

Answer 1

Let's double-check the 802.11n AirPort Extreme Base Station's (AEBSn) settings...
AirPort Extreme Base Station Setup (AEBSn) w/Cable Modem
Perform a "hard" reset of the AEBSn.
o (ref: http://docs.info.apple.com/article.html?artnum=107451)
Modem/Router Power ReCycling
o Power-off the Cable modem, AEBSn, & computer(s); Wait at least 30 minutes.
o Power-on the Cable modem; Wait at least 15 minutes.
o Power-on the AEBSn; Wait at least 5 minutes.
o Power-on the computer(s)
Setup the AEBSn
Temporarily connect your computer directly (using an Ethernet cable) to one of the LAN ports of the AEBSn, and then, using the AirPort Utility in Manual Mode, check these settings:
AirPort - Base Station
o Base Station Name: <change or use the default>
o Base Station Password: (optional)
o Contact: (optional)
o Location: (optional)
o Set time automatically (optional)
o Time Zone: <select your time zone>
o Status Light: Always On (Default)
o Allow configuration over Ethernet WAN port (unchecked)
o Advertise configuration globally using Bonjour (unchecked)
AirPort - Wireless
o Wireless Mode: Create a wireless network
o Network Name: <whatever you wish or use the default>
o Allow this network to be extended (unchecked)
o Radio Mode: 802.11n (802.11b/g compatible)
o Channel: Automatic
o Wireless Security: None
AirPort - Wireless - Wireless Options
o Region: <select your region>
o Multicast Rate: 2 Mbps
o Transmit Power: 100%
o Create a closed network (unchecked)
o Use interference robustness (unchecked)
Internet - Internet Connection
o Connect Using: Ethernet
o Configure IPv4: Using DHCP
o IP Address: <provided by your ISP>
o Subnet Mask: <provided by your ISP>
o Router Address: <provided by your ISP>
o DNS Server(s): <provided by your ISP>
o Domain Name: <provided by your ISP>
o DHCP Client ID: (optional)
o Ethernet WAN Port: Automatic (Default)
o Connection Sharing: Share a public IP address
Internet - DHCP
o DHCP Range: 192.168.2.x
o DHCP Beginning Address: 192.168.2.2
o DHCP Ending Address: 192.168.2.200
o DHCP Lease: 4 hours
o DHCP Message: (optional)
o LDAP Server: (optional)
o DHCP Reservations: (optional)
Internet - NAT
o Enable default host at: (leave blank)
o Enable NAT Port Mapping Protocol (checked)
Once you have validated Internet access, you should secure your wireless network with WPA2.