NO WIRELESS DEVICE is telling that there's no Wireless PCI Adapter is installed in your PC/Laptop. Generally speaking, the errors wasn't come from the access point but from the PC.

MarHazK wrote

NO WIRELESS DEVICE is telling that there's no Wireless PCI Adapter is installed in your PC/Laptop. Generally speaking, the errors wasn't come from the access point but from the PC.

What I'am saying is that the Access Point does not allow internet connection at all, whatever the wireless device present .

Hi,

Did you give your router IP address to the "Default Gateway" into the "DHCP Settings" menu ?

Hi, in my configuration, DHCP is disabled. I gave the tp-link a static IP address.

OK, in this case, try to set a static IP address to one of your wireless client device with the router IP address to its gateway parameter.

I did what you suggested, ie, giving a static IP address to one of my wireless client device and the TP-Link's IP address as its gateway parameter. But web pages won't open, although the wireless device says it is connected through the Wi-Fi...
BTW, the country where I am located is not listed in the TP-Link's countries list. What country shall I use then? Could it be a possible reason for no internet connection? Thx

youjine wrote

the TP-Link's IP address as its gateway parameter.

Your main router is a TP-Link? What is the model?

TP-Link Model No. TL-WA901ND

There is misunderstanding...
HiSpeed is asking for model number of the main router instead of the access point.
There is a router connected to LAN port of WA901ND, isn't it?

Actually, no. There is no router connected to LAN port of WA901ND. The LAN port is plugged into the Ethernet network, and TP-Link is assigned a static IP address. That's all.