IP Configuration - IP in use? Any help much appreciated!

Question

Hi all,
I have a slight problem with a new Time Capsule.
The set up:
*TC 500gb*
*ADSL modem (D Link)*
*MacBook Air*
*HP Printer/Scanner/Copier 3210*
*iPod touch*
The Printer is connected via ethernet to the Time Capsule.
Both the MacBook Air and the iPod touch connect via WiFi.
The modem connects to the internet port on the Time Capsule.
I receive an error message every time I power on the printer, or turn WiFi on the iPod touch.
The message is:
*IP Configuration*
*62.249.169.50 is in use by 00:1d:4f:11:6f:d3, DHCP Server 192.168.1.1*
That last part, 192.168.1.1 happens to be the address I have to type to access the D Link modem's config page via the web browser.
Within this page, I have the following option:
The device can be setup as a DHCP Server to distribute IP addresses to the LAN network.
There are two choices:
*No DHCP*
Choose this option. The IP address must be manually assigned at each device connected to DSL-320T.
*DHCP Server*
Choose this option to setup as a DHCP server to distribute IP addresses to the LAN network.
Currently, the second option is selected.
Beneath this, is the following:
*DHCP Server*
Starting IP Address: 192.168.1.2
Ending IP Address: 192.168.1.254
Lease Time 60 seconds
The starting and ending IP, and the lease time, can all be changed.
If I don't power on the printer or turn on the iPod's WiFi, everything works ok.
However, with the message appearing, I can't use the printer or web on the iPod.
Does anyone have any suggestions? I'm guessing I need to change an IP address, or something...
Any help is much appreciated!! Thanks in advance,
-Chris

Answer 1

Hello iPhone. Welcome to the Apple Discussions!
Since both of your AirPorts are 802.11n models, I suggest that you use the "extend" network feature available to these models versus using a WDS.
Here is the basic setup steps to extend the AirPorts.
o If practical, place the base stations in near proximity to each other during the setup phase. Once done, move them to their desired locations.
o Open AirPort Utility and select the base station that will connect to the Internet.
o Choose Manual Setup from the Base Station menu, or double-click the base station to open the configuration in a separate window. Enter the base station password if necessary.
o Click AirPort in the toolbar, and then click Wireless.
o Choose “Create a wireless network” from the Wireless Mode pop-up menu, and then select the “Allow this network to be extended” checkbox.
o Next, select the base station that will extend this network, and choose Manual Setup from the Base Station menu, or double-click the base station to open its configuration in a separate window. Enter the base station password if necessary.
o Choose “Extend a wireless network” from the Wireless Mode pop-up menu, and then choose the network you want to extend from the Network Name pop-up menu.
o Enter the base station network and base station password is necessary.
o Click Update to update the base station with new network settings.
(ref: Page 46 of "Designing AirPort Networks Using AirPort Utility.)