So what I did was just: 1) open network connections 2) click properties 3) in the GENERAL tab, click INTERNET PROTOCOL (TCP/IP) 4) click Properties 5) choose obtain DNS server automatically My internet worked afterwards. This wasn't my solution unfortunately as I was already using the option for obtaining DNS server automatically.
Since I couldn't connect to my network wirelessly, I decided to connect to it by wire.
According to my friend, this prevented me from connecting to the net despite having a wi-fi connection. My problem was not actually answered by the TP-LINK technical support staff.
For detailed information about how to deploy a wireless LAN using IEEE 802.1X authentication, see Deployment of Protected 802.11 Networks Using Microsoft Windows.
For information about how to troubleshoot wireless connectivity on wireless networks that do not use 802.1X authentication, see Troubleshooting Microsoft Windows XP-based Wireless Networks in the Small Office or Home Office.
As long as you use the same options for both, you should be fine. WPA-TKIP or WPA-PSK is typically the names for personal WPA. My problem was not actually answered by the TP-LINK technical support staff.
WPA2 is superior as it doesn't suffer from the recently discovered flaw with WPA that allows limited cracking, though it's not a method to actually allow someone to connect. I had to surf using an unsecured network server for the past months.
unless you are running into the initial problem that most older hardware had. You may need to do a firmware upgrade on your device that is connecting to the router. Firstly you can not use WPA, you can use WPA-PSK/WPA2-PSK or WEP.