Impossible to use internet after X minutes

[Nemesis-fr]

Hello,
When i start my computer with lastest version of kubuntu nd i'm correctly connected to my bbox.
But after X minutes (randomly) i'm always connected to my box but i can't go to the way anymore.
Somthing strange is that the problem happen sometimes after visiting facebook or youtube. But with a normal surfing i have no problem. ANd when it happen i have to restrt my computer .

I'm pretty noob with kubuntu so tell me what can i do to help you to resolve my issue.



Thanks you all !

[Nemesis-fr]

HI ,
thx for your reply.
I using firefox as browser and i don't know with other one.
But when the problem appears all of http / https web site are not reachable.
I didn't try too but i tink that other protocol like pop ... have the same problem.

Yesturday i try with a wire directly connected to my box and no problems appears, so i think that the problem is only on wifi.

[GreyGeek]

If you get nothing when you issue:
ping Google.com
then try
ping 8.8.8.8
If that responds then your DNS is fouled up.
Try restarting your network service:
sudo /etc/init.d/networking restart

[Nemesis-fr]

If you get nothing when you issue:
ping Google.com
then try
ping 8.8.8.8
If that responds then your DNS is fouled up.
Try restarting your network service:
sudo /etc/init.d/networking restart

Hello

So when my appeared when i launched the download a software in Muon.
I try some of your solution. And immediatly after the connection of a the ethernet wire i was able to go to the internet :

Here you can see my interfaces file :

auto lo
iface lo inet loopback


Heresome test :
ping ww.google.com : unknow host www.google.com
ping 8.8.8.8 : From 192.168.1.95 : icmp_seq=1 Destination Host Unreachable

And the commande : sudo /etc/init.d/networking restart doesn't change anything.
When i launch this command nothing was writen into the console.

[logan01]

Do you get wifi on any other device; cell phone, tablet, etc? If you have no other device, have a friend try to receive wifi in your home.

[Nemesis-fr]

I'm not at home but in a friend house and he has no problem with him wifi (my girlfriend too) only in my laptop.

[GreyGeek]

What does
lspci
show for your wifi ?

[Nemesis-fr]

Hello here you can see the result of the lspci command.

jonathan@Jonathan-linux-port:~$ lspci
00:00.0 Host bridge: Intel Corporation ValleyView SSA-CUnit (rev 0e)
00:02.0 VGA compatible controller: Intel Corporation ValleyView Gen7 (rev 0e)
00:13.0 SATA controller: Intel Corporation ValleyView 6-Port SATA AHCI Controller (rev 0e)
00:14.0 USB controller: Intel Corporation ValleyView USB xHCI Host Controller (rev 0e)
00:1a.0 Encryption controller: Intel Corporation ValleyView SEC (rev 0e)
00:1b.0 Audio device: Intel Corporation ValleyView High Definition Audio Controller (rev 0e)
00:1c.0 PCI bridge: Intel Corporation ValleyView PCI Express Root Port (rev 0e)
00:1c.2 PCI bridge: Intel Corporation ValleyView PCI Express Root Port (rev 0e)
00:1c.3 PCI bridge: Intel Corporation ValleyView PCI Express Root Port (rev 0e)
00:1f.0 ISA bridge: Intel Corporation ValleyView Power Control Unit (rev 0e)
00:1f.3 SMBus: Intel Corporation ValleyView SMBus Controller (rev 0e)
02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 10)
jonathan@Jonathan-linux-port:~$ update-pciids
update-pciids: /usr/share/misc/pci.ids.new is read-only
jonathan@Jonathan-linux-port:~$ sudo update-pciids
[sudo] password for jonathan:
Downloaded daily snapshot dated 2015-12-10 03:15:02

[Nemesis-fr]

As I said previously the problem appears after a simple download or launching a video on Youtube (when I ask too much internet)

[GreyGeek]

Ah, the RTL8* wifi. My PC has a similar model RLT8188CE.

First, create the following file as root:
/etc/modprobe.d/rtl8723be.conf
then add the foilowing line:
options rtl8723be fwlps=0 ips=0

My .conf file has the following line in it:
options rtl8192ce ips=0 swlps=0 fwlps=0

They turn off link and FW power contral saves, which are on by default.
The two other possible settings are off by default.


The following solution only works for Trusty:

sudo add-apt-repository ppa:hanipouspilot/rtlwifi
sudo apt-get update
sudo apt-get install rtlwifi-new-dkms linux-firmware