Slow wireless: RHEL7, Dell XPS, Intel 7265

My Dell XPS needs to be next to my wireless router (signal strength poor), event though wireless is fine on other devices.

I yum updated the kernel and picked up recommended drivers from Intel (placed iwlwifi-7265-14.ucode, /lib/firmware/iwlwifi-7265D-14.ucode in /lib/firmware). Modinfo does not reflect -14 drivers after restart.

My interpretation of README.iwlwifi-7265-ucode is that I need to configure the kernel but this is new to me and I am hesitant to mess with the kernel.

Sincere gratitude for any help.

Jeff

$ uname -a
Linux localhost.localdomain 3.10.0-327.18.2.el7.x86_64 #1 SMP Fri Apr 8 05:09:53 EDT 2016 x86_64 x86_64 x86_64 GNU/Linux

$ lspci | grep 7265
02:00.0 Network controller: Intel Corporation Wireless 7265 (rev 59)

$ modinfo iwlwifi | grep 7265
firmware: iwlwifi-7265D-12.ucode
firmware: iwlwifi-7265-12.ucode

$ ls /lib/firmware/7265
/lib/firmware/iwlwifi-7265-10.ucode /lib/firmware/iwlwifi-7265-9.ucode
/lib/firmware/iwlwifi-7265-12.ucode /lib/firmware/iwlwifi-7265D-10.ucode
/lib/firmware/iwlwifi-7265-13.ucode /lib/firmware/iwlwifi-7265D-12.ucode
/lib/firmware/iwlwifi-7265-14.ucode /lib/firmware/iwlwifi-7265D-13.ucode
/lib/firmware/iwlwifi-7265-8.ucode /lib/firmware/iwlwifi-7265D-14.ucode