Q: Airport Extreme Invalid IP Address
I've researched the heck out of this problem and have tried a number of solutions but to no avail: I just bought an Airport Extreme to replace my current router for our home wireless network, and from the get-go plugging it in to my Motorola SB5102 modem has caused it to report an Invalid IP Address. Yet, this computer, which is wired to the Airport, can connect to the internet (I'm on it right now). However, I cannot get other computers onto the internet through WiFi on the Airport. I've tried leaving both the modem and the Airport powered down overnight to reset the system but that hasn't done anything (granted, I haven't tried a full 12 hours power down). It's on bridge mode because I can't seem to get any of the other modes to work; I initially figured I'd want the Airport to distribute a range of IP addresses seeing as it's for a home network and I want to get other computers online, but Airport Utility told me that my modem was apparently already doing something like this.
AirPort Extreme, Windows 7, AirPort Utility, Motorola SB5102
Posted on Jul 1, 2011 3:02 PM
I initially figured I'd want the Airport to distribute a range of IP addresses seeing as it's for a home network and I want to get other computers online
The correct setting would be "Share a public IP address".
Distribute a range of IP addressess would only be used if your service provider has furnished you with a list of "static" IP addresses. This would be very unusual in a home setup.
Suggest that you reset the cable modem as follows:
Push the reset button (if present)
Power down the modem
Pull the battery (if easily accessible)
Perform a Factory Default Reset on the AirPort Extreme as follows:
Pull the power plug from the back of the AirPort Extreme
Hold in the reset button and keep holding the reset button for 10-12 seconds in while you plug the power back in to the AirPort Extreme
Release the reset button and let the AirPort Extreme restart
Power off the AirPort Extreme
Leave the modem and AirPort Extreme powered down for at least 15 minutes
Connect the modem to the WAN port (circle of dots icon) on the AirPort Extreme
Power up the modem first, and let it run for 5 minutes by itself
Power up the AirPort Extreme next and let it run for 5 minutes as well
Power up each computer or other devices one at a time about a minute apart
Open AirPort Utility and click Continue to follow the guided setup
In general, you will name the device and establish a device password, set up the wireless and guest network settings, configure the Internet connection using "Ethernet" and Configure IPv4 "Using DHCP" (no other settings will be required on the Internet page), accept and Update.
Please post on your results.
Posted on Jul 1, 2011 3:27 PM