@Mahendiran_C If you have AX3000 HW v1 then you could configure one of them as main router and the other two in AP mode with teh same SSIDs. If you have AX3000 HW v2.6 then you could configure one of...

@Nxus It's OK, but if you have some older or IoT wireless devices that support only 2.4GHz band they won't be able to see the 5GHz band to connect to.

@Nxus WPA3 (Wi-Fi Protected Access 3) concerns only wireless connections. Obviously your laptop wireless card doesn't support WPA3, your best bet is WPA2-PSK [AES} option for wireless connections.

@Nxus It might be that your laptop wireless card doesn't support WPA3. If your laptop wireless card is made by Intel - check this support article. Open a Windows command prompt and execute the...

@Nxus Goot to know that C54 indeed has WPA3 implemented. The setting I was explaining is on you laptop (Windows): Windows 10 saves a list of Wi-Fi networks you connect to along with their passwords...

@Nxus On your laptop forget/delete your wireless SSID and add it again to see if that makes any difference. Here is an example for C54 wireless settings: