Instead of boxing up the 5500 and letting it collect dust in a closet, or using it as a paper weight, maybe it will serve better as an AP. It's worth a shot. For anyone wanting to use the 5500 as an AP, here are step by step directions for you to follow.
Connect to an Existing Router
Note: It is strongly recommended to replace your existing router with the DGL-5500 instead of using both. If your modem is a combo router, you may want to contact your ISP or refer to the manufacturer’s user guide to put the router into Bridge mode, which will ‘turn off’ the router (NAT) functions.
If you are connecting the DGL-5500 router to an existing router to use as a wireless access point and/or switch, you will have to do the following to the DGL-5500 before connecting it to your network:
• Disable UPnPTM
• Disable DHCP
• Change the LAN IP address to an available address on your network. The LAN ports on the router cannot accept
a DHCP address from your other router.
To connect to another router, please follow the steps below:
1. Plug the power into the router. Connect one of your computers to the router (LAN port) using an Ethernet cable. Make sure your IP address on the computer is 192.168.0.xxx (where xxx is between 2 and 254). Please see the Networking Basics section for more information. If you need to change the settings, write down your existing settings before making any changes. In most cases, your computer should be set to receive an IP address automatically in which case you will not have to do anything to your computer.
2. Open a web browser, enter http://192.168.0.1 (or http://dlinkrouter.local./) and press Enter. When the login window appears, set the user name to Admin and leave the password box empty. Click Log In to continue.
3. Click on Advanced and then click Firewall Settings. Uncheck the Enable UPnP checkbox. Click Save Settings to continue and then click Restart Later.
4. Click Setup and then click Network Settings. Uncheck the Enable DHCP Server checkbox. Click Save Settings to continue.
5. Under Router Settings, enter an available IP address and the subnet mask of your network. Click Save Settings to save your settings and then click Restart Now. You will need to use this new IP address to access the configuration utility of the router in the future. Close the browser and change your computer’s IP settings back to the original values as in Step 1.
6. Disconnect the Ethernet cable from the router and reconnect your computer to your network.
7. Connect an Ethernet cable in one of the LAN ports of the router and connect it to your other router. Do not plug anything into the Internet (WAN) port of the D-Link router.
8. You may now use the other three LAN ports to connect other Ethernet devices and computers. To configure your wireless network, open a web browser and enter the IP address you assigned to the router. Refer to the Configuration section for more information on setting up your wireless network.