How to find "wireless network security key"

Did you enter the security key (password)? It may be your laptop? Try resetting the D-Link to default settings and connecting to the laptop. They reconfigure the SSID and Security Key. Write down the info for future use. Here's a user Manual: http://www.dlink.com/uk/en/home-solutions/connect/routers/dir-600-wireless-n-150-home-router

Can you connect to the Internet using the LAN cable?
Have you configured the wireless card in your laptop with the router's wireless settings?

Network Key (WEP, WPA, WPA2 Encryption key)To connectyour computer to a wireless router, you click the Refresh networklist, then Choose your wireless network and then click Connectto your secured Wireless Network, it will asks for a Network Keybefore allowing you to connect into your wireless network. This NetworkKey is either the WEP, or WPA or WPA2 Encryption key that is used toconfigure the Wireless Router. The Passphrase is an alternate way tosetup the Encryption key.
When you are requested for a Network Key, you can just enter the Passphrasethat was used to configure the Encryption key in the wireless router.http://www.fixya.com/support/r5270415-network_password_network_addressFor information on securing your wireless network,configuring the wireless router and configuring the wireless card in thelaptop/computer, please click on this link and follow my instructions :-http://www.fixya.com/support/r3559128-wireless_router_security

Router password is the password to access the router settings.
SSID is the network name. When you try to connect to the wireless network on your laptop, you will see this network name.
If your network is secured network then it will ask you for the network key or the password. You need to enter the ' security key '.

Click Here for step by step by instructions

Adding a wired computer or device to the network.

If you router is already set up and you want to add a new computer, you don't need to run the set up CD for the router again.
If you are adding a desktop or any other device to the router which will always be connected to the router with the Ethernet cable, then in this case you don't need to do anything.
You can just connect the Ethernet cable between the router and the computer and it should work.
If you are not able to go online even when it is connected properly then check IP address of the computer.

Adding a wireless computer or device to the network.

If you router is already set up and you want to add a new computer, you don't need to run the set up CD for the router again.
If you want to add a new wireless device ( laptop or any other wireless device) to the network, then you should know all the wireless settings of the router. What wireless settings do you need to know ?
You should know the wireless network name ( SSID ), wireless channel and the wireless security password
( network key ). Once you get all the wireless settings of the router , you will need to connect to the wireless network on the computer. when you try to connect to the network , you will see your wireless network in the list. You just need to select your network and connect to it. If it is secured then you will need to enter the network key and you will be able to go online.
To check the wireless settings of the router , you will need to access the router set up page. On the set up page you will find all the wireless settings of the router.
click Here for step by step instructions

You must manually configure the wireless settings. Go to Network and Sharing Center > Manage Wireless Networks. Remove all the listed network there. Then click Add > Add Network in Range > Select your signal > Type the security if you have and press connect. That should do it.

Here is the support link for the di624, just so you know this unit is not sold or supported in the US.

http://www.dlink.com.au/tech/

Please let me know if this helps...
Tim

If unsure of your network key try to reconfigure your wireless network again.

Access the configuration page of your router. type on the address bar 192.168.0.1
On login type Admin leave password blank. if you set up a >password or the login page use that one.
>Once inside the Dlink Page
>Go to setup and on the left side click wireless setting.
>If given the option to click on manaul wireless connection setup click on it.
>Once you have the wireles window
>try to change the network name and scroll down
>Under security choose WPA security (enhanced)
>Scroll down and under the Passphrase type in your new network passwork or security key and confirmed it.
>Click on Save Settings
>If it asked your to reboot then reboot if not its ok

>Using your laptop click start and go to "connect to" and click on your wireless network and connect to it and along the way it will prompt you to enter your network key or password. This would be the same as your passphrase or pre-share key type in your network key.
> Once connected to your wireless network, Open an Internet browser to connect to the Internet.

Try to reconfigure your wireless network on your DI-524.

To access the configuration page of your router by Default type in on the address bar 192.168.0.1. On the login page by default the Username is admin and leave the Password blank.

If inside the the configuration page of the router

>Click Home
> Click on WIRELESS located on the left side and you will have the wireless setting of your network
> Change the wireless network name
> Under security choose either WEP or WPA -PSK for this type of router.
> Type in your new network key (also know as Passphrase of Key1).

For WEP use 0 to 9 Number or A to F character and it should be exactly 10 characters.
For WPA-PSK you can use alpha numeric from 0 to 9 and from A to Z. The minimun character would be 8.

> Click on apply
> Click on continue.
Try accessing your wireless network first using your wireless computer. If you are connected to your wireless network try connecting to the Internet.

Go to www.dlink.com for customer support.

I don't think your problem is firmware. Can you ping the router from your laptop?