Take the 2-minute tour ×
Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free, no registration required.

My laptop came with Ubuntu as a pre-loaded OS but my brother removed it and installed Windows 7 over it and after reinstalling Ubuntu Wifi is not working. It is not showing available Wifi networks. It used to work before and I am sure that my Wifi adapter is compatible with Linux.

I need help installing the drivers of the Wifi adapter.

Laptop details: http://www.czone.com.pk/laptops-new-an-p.1097.aspx

share|improve this question
The link is not working. –  Flimm Jan 4 '13 at 15:45
Specifications of Dell Inspiron N5520 Laptop (Moon Silver Cover) Specifications Processor Intel® Core™ i5-3210M Processor (3M Cache, up to 3.10 GHz, rPGA) Memory 4GB DDR3 Hard Drive 500GB SERIAL ATA (5400RPM) Display 15.6" HD (1366 x 768) WLED True-Life Operating System Ubuntu Linux 11.10 Optical Drive Tray Load DVD+/-RW Drive Networking & Communication LAN Yes Wireless LAN - WiFi Dell Wireless 1704 802.11b/g/n Bluetooth Yes Card Reader 8-in-1 Card Reader Webcam Yes Graphic Card Dedicated 1GB AMD Radeon HD 7670M –  farhan Jan 4 '13 at 17:03
Please provide additional information only by editing your question and not within a comment. Comments might/will eventually be deleted and so your information would get lost. –  Basharat Sialvi Apr 6 '13 at 23:57

1 Answer 1

Could you please type this command in the terminal and post the output:


so we can identify your adapter

share|improve this answer
07:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 05) 08:00.0 Network controller: Broadcom Corporation BCM43142 802.11b/g/n (rev 01) –  farhan Jan 4 '13 at 17:13

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.