[ubuntu] Not recognizing my new router

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http://ubuntuforums.org – I bought a new router and my ubuntu 12.04 running on dell inspiron 5420 does not recognise it. It recognised my previous router perfectly. It still recognises my mobile's personal hotspot and some other wifi's but not my new one. Help me! To add if it helps wired connections do not work on my ubuntu - perhaps driver problem. Here's some outputs if it helps :- 1) lspci Code: 00:00.0 Host bridge: Intel Corporation Ivy Bridge DRAM Controller (rev 09)00:01.0 PCI bridge: Intel Corporation Ivy Bridge PCI Express Root Port (rev 09) 00:02.0 VGA compatible controller: Intel Corporation Ivy Brid (Hardware)