Hello, Thank you for answering.
1. I enabled Ad Hoc Qos Mode WMM (It was Disabled by default). Rebooted. Did not worked.
I don't have any issue with other laptops or tablets in order to connect to my wireless. So , I belive that my wireless device transmiter has no issue.
I belive the issue comes from both laptops from this wireless adapter AC 7260.
2. U-APSD support is Enabled by default
Wireless device transmiter settings:
Laptop setings and feedback when connecting to my WPA2-PSK - User SSID VIrus (It's the name ive chosen)