A Service Set Identifier (SSID) is the network name being broadcasted by your TP-Link wireless router. If the Problem is caused by your laptop, please call the support of your laptop. If you have connected to various wireless networks before, your computer may have problems connecting wirelessly, especially when the wireless network name (SSID) is the same with the previous ones you have connected to.
This is where your computer or wireless device connects to become part of your wireless network. Check whether the laptop has a WIFI button, make sure the WIFI is on. Removing wireless network profiles on your computer may improve your wireless connectivity to your current wireless network. If you are not sure, please login the management page to double check.
Click on Properties once you select the wireless network that is having problems.
Click on the Authentication tab and now uncheck the Enable IEEE 802.1x authentication for this network box.
First, click on the wireless icon in your taskbar and under Related Tasks, choose Change advanced settings.