Why cannot I access the Internet after successfully connected to the TP-Link router’s wireless network(Windows OS)?

Problem Description:
If you have set up the wireless router and successfully connected to the wireless network, but you cannot access the Internet, please try the solutions below:
Step 1:
Please check whether the wireless network connection of your computer is under obtain an IP address automatically and obtain DNS server address automatically. If you don't know how to configure it, please click here.
Step 2:
Press Windows key and R key on the keyboard at the same time to open the Run application, type cmd and click OK. Type ipconfig –all in the coming window and press Enter.

If the IP is 169.254.xxx.xxx, please type in ipconfig –renew to get IP address again. If still can’t get a proper IP, please make sure you have enabled DHCP function. You can login http://tplinklogin.net (or through Ethernet cable to make it.
Note: Sometimes the wireless connection is fault but seems good caused by unsupported key type. You can change the security type (like WEP) to type again.
Step 3:
Log in the web management page of the router. Open the web browser and input http://tplinklogin.net:
Type the username and password in the login page, the default username and password are both admin.
Step 4:
After logged in, check the WAN part on the Status page, if it shows an IP address (similar as below), that means the router is successfully configured and connected to the Internet:
If there is no IP address, please check the physical connection or call your service provider to check the line.
Step 5:
If there is IP address on the WAN part on the Status page, please check whether you can ping a public IP address (like If can’t, please release/renew the WAN IP address.
If can, please check whether you can open any website. If can’t, it may caused by DNS server. Please go to DHCP->DHCP Settingspage and typein for primary DNS, click Save.
Go to System Tools->Reboot to reboot to router:
Step 6:
After rebooted, please try the Internet again. If still can’t, please call or mail TP-Link support for help.
This Article Applies to:
TL-WR841N , TL-WDR3500 , TL-WR743ND
User Application Requirement | Updated 01-14-2015 07:25:35 AM