Ubuntu

Wi-fi randomly disconnects, then reconnects, but firefox no longer has access to internet

Asked by Robert James

I know this sounds like a wifi problem, but it's only this computer that does this.

The wifi icon on the top bar disconnects randomly, then immediately reconnects with no problem; it's been doing this for a while and I've been ignoring it as it posed no serious problem. But now after a seemingly random amount of time, whilst the icon says everything's fine, neither firefox or the ubuntu updater can access the internet.

Resetting the computer fixes the problem, until it happens again.

Other devices are fine, zero problems so it can't be the wifi, right? And it's not just firefox, it's the ubuntu updater too, so I'm thinking it's either a ubuntu issue or some issue with this computer in particular?

If anybody has any advice I'd be hugely grateful!

Thanks,

Robbie

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actionparsnip (andrew-woodhead666) said : 		#1

Reboot the router as a good first step. They are computers and no infallible.

If you still have issues. What is the output of:

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

Thanks

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Robert James (marythemoose) said : 		#2

Already tried router reboot - no dice.

Output as follows:

  *-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=4.4.0-63-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 16.04.2 LTS
Release: 16.04
Codename: xenial
Linux marythemoose-H61M-DS2 4.4.0-63-generic #84-Ubuntu SMP Wed Feb 1 17:20:32 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
0: phy0: Wireless LAN
 Soft blocked: no
 Hard blocked: no

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actionparsnip (andrew-woodhead666) said : 		#3

Try:

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

reboot to test

Is it OK then?

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Robert James (marythemoose) said : 		#4

It does this so randomly I'll have to wait until tomorrow, unless it does it again before then. Thanks.

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Robert James (marythemoose) said : 		#5

Hi, it was fine yesterday but just did it again.

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Launchpad Janitor (janitor) said : 		#6

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