I am having similar issues on 16.04. My wifi keeps dropping and I have
to select my SSID to reconnect multiple times a day. I am seeing errors
in journalctl that show a firmware error. (attahcing part of journalctl)

hhernandez@hhernandez-Precision-M4800:~$ sudo lshw -C network
[sudo] password for hhernandez: 
  *-network               
       description: Ethernet interface
       product: Ethernet Connection I217-LM
       vendor: Intel Corporation
       physical id: 19
       bus info: pci@0000:00:19.0
       logical name: eno1
       version: 04
       serial: 20:47:47:be:e2:a3
       capacity: 1Gbit/s
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 
10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=e1000e 
driverversion=3.2.6-k firmware=0.13-3 latency=0 link=no multicast=yes 
port=twisted pair
       resources: irq:28 memory:f7100000-f711ffff memory:f7139000-f7139fff 
ioport:f040(size=32)
  *-network
       description: Wireless interface
       product: Wireless 7260
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:03:00.0
       logical name: wlp3s0
       version: bb
       serial: ac:fd:ce:87:67:3e
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical 
wireless
       configuration: broadcast=yes driver=iwlwifi 
driverversion=4.4.0-22-generic firmware=16.242414.0 ip=192.168.254.38 latency=0 
link=yes multicast=yes wireless=IEEE 802.11abgn
       resources: irq:32 memory:f7000000-f7001fff


** Attachment added: "iwifi_error.txt"
   
https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1568815/+attachment/4693739/+files/iwifi_error.txt

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https://bugs.launchpad.net/bugs/1568815

Title:
  iwlwifi 3160 regression - wifi is unstable, bluetooth does not work
  anymore

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