We are getting error 103 while installing the DIR 300 router even when there is an internet connectivity On. Could you please help us? Please send us the solution at the provided email address ASAP.

SOURCE: Cannot access the internet through my DIR-625

Check your IP address to 192.168.10.1 on the network settings
after that turn modem and VoIP off.
Click on Setup / Manual Internet
Select Dynamic IP under "My internet connection is"
Click on "Clone Your PC's Mac address"
Click on Save settings, if it ask for reboot click on reboot
After the router reboots (NOT COMPUTER), it will take you back to the router.
Once your are in the router, turn the modem on first then the VoIP.
After the modem and VoIP has finish rebootin
Click on the status tab of the router and check uder the "WAN"
Settings and check the IP address. If you get an IP address then check the internet.
If you do not get an IP address Click on Release and then renew.
If you still do not get an IP address click on Advance tab
Click on Advance network on the left and turn UPNP off and save the settings.
After that it should be able to get an IP address and you should be able to get online.

SOURCE: VPN problem with Dlink DIR-300

Update your firmware to the latest. I had the same issue and the issue is gone after the upgrade.

SOURCE: Cannot get internet connection through wireless

access your router's settings to change and configure it: http://192.168.0.1

SOURCE: Hi I cant configure my router D-link DIR-300

This definitely worked for me. To find out your computer's MAC address, just go to start, then click run, then type 'CMD'. When prompted, type 'ipconfig/all'. Find your ethernet adapter local area network connection, and underneath you will find a lablel titled Physical Address. This is your MAC address and should consist of 6 pairs of number/letter combinations. Then connect your computer to the modem, eithe wirelessly or directly and point your browser to 192.168.0.1. Under Setup click Internet Setup and then click Manual Internet Connection Setup. Under Internet Connection Type, select Dynamic IP (DHCP), then under MAC address, type in the MAC address of your computer. Click Save Settings and Presto! It worked for me.