Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I have 12.04 installed on my Samsung laptop with RTL8111/8168B PCI Express Gigabit Ethernet controller. But I can't connect to or create a Ad-hoc network. Whether I need to install any additional drivers for enabling Ad-hoc network?

share|improve this question
An ad-hoc network is a wireless network; the RTL8111/8168 is a wired Ethernet controller and can neither create nor connect to any wireless networks. Please clarify your question. – izx Aug 18 '12 at 18:06
But I can connect to wifi networks available and use the inernet without any difficulty – Anoop C S Aug 20 '12 at 4:18
Please pastebin the output of sudo lshw -c network so we can determine which wireless card you are using. – izx Aug 20 '12 at 7:13
*-network description: Wireless interface product: Centrino Wireless-N 130 vendor: Intel Corporation physical id: 0 bus info: pci@0000:02:00.0 logical name: wlan0 version: 34 serial: b8:03:05:39:6a:75 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=iwlwifi driverversion=3.2.0-29-generic firmware= ip= latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn – Anoop C S Sep 2 '12 at 9:28

Unfortunately, your card is a wired card. It does not have any sort of transmitter or antenna. You can, however, use a cable, to connect to another computer or a router. An alternative is to buy a wireless adapter. You may install it inside your computer. IT, however, should have an adapter already installed, being a laptop.

Should you try to set up a wired network, you need at least one device to run a DHCP server(many routers do that) or manually assign an IP address to every device.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.