After upgrade to 12.04 network says "the system network services are not compatible with this version"

Asked by Mark Hopkins

I upgraded from 10.04 to 12.04 and lost networking. The network button on the menu bar is not there, and under system settings and network it says "The system network services are not compatible with this version". I use a wireless USB connection on my T43 Thinkpad. The internal wireless is hidden in the BIOS as range is not good enough. I don't have easy access to a LAN connection. My wireless is a TP-Link model TL-WN822N and everything worked fine before the upgrade. I used the update manager to do the upgrade. My knowledge is limited but I did do a couple of other successful upgrades before on this computer in the past. I posted on the Ubuntu forums but a day later got no response so trying here now.
Thanks,
Mark

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Mark Hopkins
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actionparsnip (andrew-woodhead666) said :
#1

Can you give the output of:

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

Thanks

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Mark Hopkins (mpinegrove) said :
#2

Hi Andrew, output is:

family@family-laptop:~$ sudo lshw -C network; lsb_release -a; uname -a; sudo rfkill list
[sudo] password for family:
  *-network DISABLED
       description: Ethernet interface
       product: NetXtreme BCM5751M Gigabit Ethernet PCI Express
       vendor: Broadcom Corporation
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: eth0
       version: 11
       serial: 00:15:58:29:de:2c
       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=3.121 firmware=5751m-v3.46a latency=0 link=no multicast=yes port=twisted pair
       resources: irq:16 memory:b0200000-b020ffff
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 12.04.2 LTS
Release: 12.04
Codename: precise
Linux family-laptop 3.2.0-37-generic #58-Ubuntu SMP Thu Jan 24 15:28:57 UTC 2013 i686 i686 i386 GNU/Linux
0: hci0: Bluetooth
 Soft blocked: no
 Hard blocked: no
1: tpacpi_bluetooth_sw: Bluetooth
 Soft blocked: no
 Hard blocked: no

Thanks for helping out

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Mark Hopkins (mpinegrove) said :
#3

It was recommended to me to enter in terminal gsku gedit /etc/network/interfaces
which gave the folling information in that file:

auto lo
iface lo inet loopback

iface ppp0 inet ppp
provider ppp0

auto ppp0

I was then told to delete all except the first 2 lines, save and reboot, which I did. This moved things forward a bit in that the network button appeared in the menu bar and wired became a network option. With that option I can connect my smartphone and connect to the internet. Now I need to find out how to get it to enable or recognize my USB wireless adapter instead.

Thanks for any help you can provide.
Mark

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Mark Hopkins (mpinegrove) said :
#4

Hi Andrew,
I redid the output as you had asked for since I now have the wired networking working. The result is as follows:

  *-network
       description: Ethernet interface
       product: NetXtreme BCM5751M Gigabit Ethernet PCI Express
       vendor: Broadcom Corporation
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: eth0
       version: 11
       serial: 00:15:58:29:de:2c
       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=3.121 firmware=5751m-v3.46a latency=0 link=no multicast=yes port=twisted pair
       resources: irq:16 memory:b0200000-b020ffff
  *-network
       description: Ethernet interface
       physical id: 1
       bus info: usb@3:2.4
       logical name: eth1
       serial: c2:9f:42:dd:a9:63
       capabilities: ethernet physical
       configuration: broadcast=yes driver=ipheth ip=172.20.10.4 link=yes multicast=yes
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 12.04.2 LTS
Release: 12.04
Codename: precise
Linux family-laptop 3.2.0-37-generic #58-Ubuntu SMP Thu Jan 24 15:28:57 UTC 2013 i686 i686 i386 GNU/Linux
0: hci0: Bluetooth
 Soft blocked: no
 Hard blocked: no
1: tpacpi_bluetooth_sw: Bluetooth
 Soft blocked: no
 Hard blocked: no
family@family-laptop:~$

Thanks
Mark

Revision history for this message
Mark Hopkins (mpinegrove) said :
#5

I got a tip on the Ubuntu Forum, someone with the same adapter had entered in this code:

sudo modprobe ath9k_htc

And magically everything worked immediately.

Thanks for the help,

Mark

Revision history for this message
actionparsnip (andrew-woodhead666) said :
#6

If you run:

echo "ath9k_htc" | sudo tee -a /etc/modules > /dev/null

it will load at boot each time