Wifi intermittently disconnects, reconnects, eventually can't get on internet, other devices have no problem at all?

What is the output of:

sudo lshw -C network; lsb_release -a; uname -a; sudo rfkill list

Thanks

You may want to reboot the router, just to rule it out as an issue.

  *-network
       description: Ethernet interface
       product: AR8151 v2.0 Gigabit Ethernet
       vendor: Qualcomm Atheros
       physical id: 0
       bus info: pci@0000:03:00.0
       logical name: eth0
       version: c0
       serial: 50:e5:49:49:67:03
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress vpd bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=atl1c driverversion=1.0.1.1-NAPI latency=0 link=no multicast=yes port=twisted pair
       resources: irq:29 memory:fbdc0000-fbdfffff ioport:ef00(size=128)
  *-network
       description: Wireless interface
       physical id: 1
       bus info: usb@1:1.2
       logical name: wlan0
       serial: 00:24:b2:e2:d5:21
       capabilities: ethernet physical wireless
       configuration: broadcast=yes driver=carl9170 driverversion=4.4.0-58-generic firmware=1.9.6 ip=192.168.1.3 link=yes multicast=yes wireless=IEEE 802.11bgn
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.04.1 LTS
Release: 16.04
Codename: xenial
Linux marythemoose-H61M-DS2 4.4.0-58-generic #79-Ubuntu SMP Tue Dec 20 12:12:35 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
0: phy0: Wireless LAN
 Soft blocked: no
 Hard blocked: no

Try the below command:

echo "options carl9170 nohwcrypt=1" | sudo tee -a /etc/modprobe.d/carl9170fix.conf > /dev/null

Reboot to test

OK, will let you know if still a problem.
Thanks so much for your help :D

Hi, problem still persists; it did appear to be fixed for a while, but I might be wrong, maybe I wasn't on it long enough. Any further help would be amazing.

Did you try rebooting the router?

Sorry, only just saw this; just rebooted router, will let you know if problem persists. Thanks.

Rebooting router made no difference, problem persists. Also, may be unrelated but now the ubuntu updater isn't working as well? There's an icon on the bar like a no entry sign (red circle with white horizontal line through the middle) and if you click on it, it says: "An error occurred when checking for updates"

This question was expired because it remained in the 'Open' state without activity for the last 15 days.

Yeah, still got this problem; if anybody can help any advice wold be awesome, thanks.

This question was expired because it remained in the 'Open' state without activity for the last 15 days.