Jeremy,

I can not thank you enough for your instructions.  I made sure I was running the 4.1.6 firmware, went through the steps you provided, and it worked perfectly.  My wireless network is currently stable and functional.

otter@otterlappy:~$ uname -a
Linux otterlappy 4.1.6-040106-generic #201508170230 SMP Mon Aug 17 06:32:14 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
otter@otterlappy:~$ sudo lshw -C network
  *-network               
       description: Wireless interface
       product: Qualcomm Atheros
       vendor: Qualcomm Atheros
       physical id: 0
       bus info: pci@0000:01:00.0
       logical name: wlan1
       version: 20
       serial: ac:e0:10:2d:8c:3b
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=ath10k_pci driverversion=4.1.6-040106-generic firmware=atheros-12.0.0.102-fw ip=192.168.1.68 latency=0 link=yes multicast=yes wireless=IEEE 802.11abgn
       resources: irq:39 memory:f0800000-f09fffff
  *-network
       description: Ethernet interface
       product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: eth0
       version: 10
       serial: 68:f7:28:cb:5e:a2
       size: 100Mbit/s
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl8168g-3_0.0.1 04/23/13 ip=192.168.1.71 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
       resources: irq:35 ioport:2000(size=256) memory:f0c04000-f0c04fff memory:f0c00000-f0c03fff
otter@otterlappy:~$ sudo modinfo ath10k_pci
filename:       /lib/modules/4.1.6-040106-generic/updates/drivers/net/wireless/ath/ath10k/ath10k_pci.ko
firmware:       ath10k/QCA6174/hw3.0/board.bin
firmware:       ath10k/QCA6174/hw3.0/firmware-5.bin
firmware:       ath10k/QCA6174/hw3.0/firmware-4.bin
firmware:       ath10k/QCA6174/hw2.1/board.bin
firmware:       ath10k/QCA6174/hw2.1/firmware-5.bin
firmware:       ath10k/QCA6174/hw2.1/firmware-4.bin
firmware:       ath10k/QCA988X/hw2.0/board.bin
firmware:       ath10k/QCA988X/hw2.0/firmware-5.bin
firmware:       ath10k/QCA988X/hw2.0/firmware-4.bin
firmware:       ath10k/QCA988X/hw2.0/firmware-3.bin
firmware:       ath10k/QCA988X/hw2.0/firmware-2.bin
firmware:       ath10k/QCA988X/hw2.0/firmware.bin
license:        Dual BSD/GPL
description:    Driver support for Atheros QCA988X PCIe devices
author:         Qualcomm Atheros
version:        backported from Linux (next-20150903-0-ga672f92) using backports backports-20150903-0-g7b34ea2
srcversion:     2C3D5FA5797C89E8231F86B
alias:          pci:v0000168Cd00000040sv*sd*bc*sc*i*
alias:          pci:v0000168Cd0000003Esv*sd*bc*sc*i*
alias:          pci:v0000168Cd00000041sv*sd*bc*sc*i*
alias:          pci:v0000168Cd0000003Csv*sd*bc*sc*i*
depends:        ath10k_core,compat
vermagic:       4.1.6-040106-generic SMP mod_unload modversions 
parm:           irq_mode:0: auto, 1: legacy, 2: msi (default: 0) (uint)
parm:           reset_mode:0: auto, 1: warm only (default: 0) (uint)