I am Using a D-link DIR-524 router, it has one internet port and 4 lan ports. All was working well till yesterday afternoon. Due to heavy rain the electricity was cut. When it resumed, i switched on my ISP modem and the dlink rojuter, and what i find that, the globe symbol does not light up. Due to which the ethernet light on the isp modem does not light up. I tried resetting both the devices several times but nothing worked. It was all perfect before the power went off that day. When i reboot or reset the Dlink router, all the lights including the globe symbol light up, but when i connect it to the isp modem via lan, the globe does not light up. Now i have to use the internet via lan and no wireless.. Please help

SOURCE: D-Link DI-524 4 Port connection Problem.

Perhaps the router is not broadcasting its SSID, therefore is invisible to would be tappers. Type 192.168.0.1 into a browser on a computer directly wired to the router, leave the username blank, if you havent changed it, the password is admin by default. Once logged in check that wireless is enabled and that you are broadcasting the ssid, you may want to setup/change security settings for the wireless connection at this time also.

SOURCE: DI-524 status led not blinking

Here are the instructions

1. Make sure that you have a copy of the latest firmware and it has an *.exe file with it. Because the router's configuration page won't be available, you'll be needing the exe to some sort of force the firmware upgrade procedure.
2. Unplug everything attached to your router except the power cable and LAN cable connected to your pc.
3. Configure your TCP/IP with this info: IP:192.168.123.253, Default mask:255.255.255.0, Default Gateway:192.168.123.254 and DNS Server:192.168.123.254 (Use only 1 DNS server). Save this new configuration and reboot your pc.
4. Unplug the power cable to your router as the pc reboots. When everything is up and running, plug the power cable. The status led will be flashing like crazy. It's normal.
5. Use the exe file to upgrade your firmware. Make sure that the utility file (exe file) is able to recognize your router or else you won't be able to do a firmware upgrade. Now this may take a while, keep pressing the Refresh button to recognize your router. Once recognized you would see there 192.168.0.1 crash. Once you have this, you can now press the upgrade button.
6. Wait for a while until the unit finishes the upgrade and once done, I think you have recovered the life of your router from the pits of hell. Hahahaha.
7. You can now unplug the power of the router and restart your pc, see if everything is doing fine.

SOURCE: how to put a password on dlink dir-300 wireless network

u have to setup as wep
then enable secure network then set encryption key.wihc is prompt for connect network.

SOURCE: DLink DIR-615 can forward ports

You probably have a 3rd part firewall software on the PC, configure that firewall to allow the same ports. what AntiVirus do you have?

SOURCE: how do i upgrade my firmware on my dlink dl-524?

Go to the following website to download the firmware update for the DL-524. This will save the firmware update to your harddrive:

http://www.dlink.com.au/tech/Download/download.aspx?product=DI-524&revision=REV_B&filetype=Firmware

1. Open the web browser
2. Type in the IP address of the DL-524 router.
3. Type admin in the user name field
4. Type the password you set on this device
5. Click on the Tools tab
6. Click the browse button and locate the firmware file you downloaded and saved to your hard drive.
7. Click the apply button to complete the firmware upgrade.