WiFi Issue - RHEL 7.2

Dear All,

My Desktop Computer is custom built: CPU: AMD 10-5800K; MOBO: GA-F2A88X-D3H (rev. 3.0); MEMORY: 16 GB DDR3 1866MHz; SSD1: PNY-120 GB; SSD2: Transcend-128 GB; OS1: RHEL 7.1 (in SSD1); OS2: Windows 10 (in SSD2); Wirelesss NA: Intel(R) Dual Band Wireless-AC 7260

Broadband connection: 30 Mb/S(http://www.acttv.in/); Router: 300Mbps (http://wifi.digisol.com/Broadband_Routers_For_Cable_Internet.html)

In Windows 10 WiFi connection works perfect and get full speed.
In RHEL 7.2 WiFI connection is VERY POOR. Sometimes I get good speed but most of the time I just can not surf internet.

RHEL 7.2 is completely updated.

Could you please provide suggestion how to improve the poor connection in RHEL 7.2.

Please help!

Thanks,
Supratik Nag, Bangalore, India