@AsifRonvy
Please ensure the router firmware is up-to-date. You can find the latest firmware on the official website:
https://www.tp-link.com/support/download/archer-c20/#Firmware
Is the HP cori7 laptop connecting to the 5G network or 2.4G? You can try to run a Wi-Fi analyzer to check what are the channels around for both the 2.4G and 5G network, then try to choose the same one that can be detected by the laptop. You can also change the channel width to 40MHz for the 2.4G, and 80MHz to 5G, reboot the router and reconnect to the wireless network, then confirm.