wi-fi

Does the system have a make and model?
Is the system fully updated?
What wifi chip do you use?

thank
the system is fully updated
its Dell studio xps
HUAWEI MOBILE WIFI

How, where and why do you "copy my Home Folder"?

I need setting for my Firefox and virtual box. I delete the old one and copied only. .Firefox and .virtual box and .virtual box.old

Copying the firefox and virtualbox settings from another installation to this system cannot have an influence on the function of the wifi adapter.

What I can imagine is that the firefox settings of the old system do not fit to your new system and prevent firefox from correctly running.

What is the output of
sudo lshw -C network; rfkill list; sudo iwlist scan | grep -Ei 'chan|ssid'

thanks

henry@polaris:~$ sudo lshw -C network; rfkill list; sudo iwlist scan | grep -Ei 'chan|ssid'
[sudo] password for henry:
  *-network DISABLED
       description: Wireless interface
       product: WiFi Link 5100
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:04:00.0
       logical name: wlan0
       version: 00
       serial: 00:22:fb:97:bd:52
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=iwlwifi driverversion=3.19.0-20-generic firmware=8.83.5.1 build 33692 latency=0 link=no multicast=yes wireless=IEEE 802.11abgn
       resources: irq:30 memory:f8000000-f8001fff
  *-network
       description: Ethernet interface
       product: NetLink BCM5784M Gigabit Ethernet PCIe
       vendor: Broadcom Corporation
       physical id: 0
       bus info: pci@0000:08:00.0
       logical name: eth0
       version: 10
       serial: 00:22:19:f9:22:05
       size: 10Mbit/s
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm vpd msi pciexpress bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=tg3 driverversion=3.137 duplex=half firmware=sb v2.17 ip=41.86.145.243 latency=0 link=yes multicast=yes port=twisted pair speed=10Mbit/s
       resources: irq:34 memory:fc000000-fc00ffff
0: hci0: Bluetooth
 Soft blocked: no
 Hard blocked: no
1: phy0: Wireless LAN
 Soft blocked: yes
 Hard blocked: no
eth0 Interface doesn't support scanning.

wlan0 Interface doesn't support scanning : Network is down

lo Interface doesn't support scanning.

tun0 Interface doesn't support scanning.

vboxnet0 Interface doesn't support scanning.

Do you have a switch or shortcut to disable / enable wireless. If you do, press it

network DISABLED
        description: Wireless interface
        product: WiFi Link 5100
        logical name: wlan0

Can you click on the network connection icon in the top right corner and activate the WLAN device?

or, what output do you get on the command

sudo ifconfig wlan0 up

no output when i gave that command. it connects but wont browse that is what i don’t understand

here is the output of
sudo lshw -C network; rfkill list; sudo iwlist scan | grep -Ei 'chan|ssid' with wilan connected to the Laptop

henry@polaris:~$ sudo lshw -C network; rfkill list; sudo iwlist scan | grep -Ei 'chan|ssid'
[sudo] password for henry:
  *-network
       description: Wireless interface
       product: WiFi Link 5100
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:04:00.0
       logical name: wlan0
       version: 00
       serial: 00:22:fb:97:bd:52
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=iwlwifi driverversion=3.19.0-20-generic firmware=8.83.5.1 build 33692 ip=192.168.8.101 latency=0 link=yes multicast=yes wireless=IEEE 802.11abgn
       resources: irq:32 memory:f8000000-f8001fff
  *-network
       description: Ethernet interface
       product: NetLink BCM5784M Gigabit Ethernet PCIe
       vendor: Broadcom Corporation
       physical id: 0
       bus info: pci@0000:08:00.0
       logical name: eth0
       version: 10
       serial: 00:22:19:f9:22:05
       size: 10Mbit/s
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm vpd msi pciexpress bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=tg3 driverversion=3.137 duplex=half firmware=sb v2.17 ip=41.86.145.238 latency=0 link=yes multicast=yes port=twisted pair speed=10Mbit/s
       resources: irq:34 memory:fc000000-fc00ffff
0: hci0: Bluetooth
 Soft blocked: no
 Hard blocked: no
1: phy0: Wireless LAN
 Soft blocked: no
 Hard blocked: no
eth0 Interface doesn't support scanning.

lo Interface doesn't support scanning.

                    Channel:149
                    ESSID:"ckLdoors"
                    Channel:1
                    Frequency:2.412 GHz (Channel 1)
                    ESSID:"IkejaLAN"
                    Channel:1
                    Frequency:2.412 GHz (Channel 1)
                    ESSID:"ZyXEL02"
                    Channel:1
                    Frequency:2.412 GHz (Channel 1)
                    ESSID:"COSCHARIS MEDICAL"
tun0 Interface doesn't support scanning.

                    Channel:9
                    Frequency:2.452 GHz (Channel 9)
                    ESSID:"IamVirus"
henry@polaris:~$

Can you please elaborate on "it connects but wont browse"?

Your last output shows that you are connected over the wlan device with an ip address of192.168.8.101, and at he same time with the wired connection and an ip address of 41.86.145.238

If you disconnect the Ethernet cable, can you then ping your WLAN router? Can you then ping 8.8.8.8?

thanks
here is output of ping 8.8.8.8

henry@polaris:~$ ping 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_seq=1 ttl=43 time=153 ms
64 bytes from 8.8.8.8: icmp_seq=2 ttl=43 time=149 ms
64 bytes from 8.8.8.8: icmp_seq=3 ttl=43 time=137 ms
64 bytes from 8.8.8.8: icmp_seq=4 ttl=43 time=167 ms
64 bytes from 8.8.8.8: icmp_seq=5 ttl=43 time=124 ms
64 bytes from 8.8.8.8: icmp_seq=6 ttl=43 time=154 ms
64 bytes from 8.8.8.8: icmp_seq=7 ttl=43 time=139 ms
64 bytes from 8.8.8.8: icmp_seq=8 ttl=43 time=162 ms
64 bytes from 8.8.8.8: icmp_seq=9 ttl=43 time=185 ms
64 bytes from 8.8.8.8: icmp_seq=10 ttl=43 time=156 ms
64 bytes from 8.8.8.8: icmp_seq=11 ttl=43 time=170 ms
64 bytes from 8.8.8.8: icmp_seq=12 ttl=43 time=164 ms

Can you please elaborate on "it connects but wont browse"?

The ping command confirms that you are connected to the internet.

Do you have the problem that firefox does not work? What happens if you try?
Have you tried other web browsers (like chromium)?

Yes Firefox and chromium doe not work. so i download firmware installer for b43legacy driver before that ping 8.8.8.8 work. it did not ping without the b43legacy software. i can connect to the wifi, but when i want to browse, it wont browse at all. i only browse with my wired connection vpn.

Thanks Manfred for all the support

Henry

You still haven't told what there is happening when you are connected with the WLAN device only, and try opening a web page with firefox (or chromium). Do you get error messages? If yes, please provide the full text.

If you are connected via WLAN and the wired LAN disconnected, the command
ping 8.8.8.8
seems to work, what about
ping google.com
?

What is the output of
wget http://archive.ubuntu.com/ubuntu/dists/vivid/Release.gpg
rm ./Release.gpg
when tried with the WLAN connection?

thanks
when i connect to WLAN and try to browse with chromium it said
the webpage is not avalable.

when i ping google.com, here is the output

henry@polaris:~$ ping google.com
ping: unknown host google.com
henry@polaris:~$

But when i ping 8.8.8.8 it worked

Ok, it seems that name resolution does not correctly work for your WLAN connection.

What is the output of the command

grep nameserver /etc/resolvconf/resolv.conf /etc/resolvconf/resolv.conf.d/*

the command did not give any output.
I manage to add the namesaver with

1. ifconfig

2. sudo nano /etc/resolv.conf

3. sudo /etc/init.d/networking restart.

It browse now but its slow. would try browsing later in the night to see the speed

Thanks

Manfred

Thanks Manfred is solved with the above command, i add a nameserver ip address and save. It browsing now, and very fast

Henry

Hi

I realised that any time i connect my wired network to the pc, it wipe the nameserver. i have to add the nameserver each time i restart my pc. please kindly assist me so i can have the nameserver saved forever

Thanks it solved