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my laptop is dell inspiron i5 3543 5th generation the command lspci -nn -d 14e4: shows the following result Broadcom Corporation BCM43142 802.11b/g/n [14e4:4365] (rev 01)

i dont know whether its my hardware problem or it is ubuntu

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This adapter is supported only by Broadcom proprietary drivers in Linux.

These drivers do not support infrastructure mode.

So there is no solution with this adapter.

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  • is it my hardware problem? so that i can ask for repair from dell – Prashant Singh Sep 28 '15 at 14:29
  • It is not a hardware fault. It is the drivers fault. There is nothing to repair. I suggest using USB wireless dongle. – Pilot6 Sep 28 '15 at 14:31
  • can i fix this problem? i have very little knowledge about linux ...plz be patient – Prashant Singh Sep 28 '15 at 15:10
  • No, you can't with this adapter. Unless Broadcom releases some other driver, or some open source driver is developed. – Pilot6 Sep 28 '15 at 15:11
  • if i install windows ... can i then create hotspot from this laptop? – Prashant Singh Sep 28 '15 at 15:12
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Go to Network in System Settings Click on to WiFi. Click the Use as Hotspot button. If you are already connected to a wireless network, you will be asked if you want to disconnect from that network.

If it successfully connected then enjoy!! or else it will be your hardware problem.

Search for appropriate drivers for your configuration.

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  • And how does this enable infrastructure mode? – Pilot6 Sep 28 '15 at 14:22
  • go for the command "sudo iwconfig wlan0 mode master" if it gives an error then it doesn't support infrastructure mode. – Roshan Kumar Sep 28 '15 at 14:30
  • So? OP already knows that it does not. – Pilot6 Sep 28 '15 at 14:31
  • follow this link : askubuntu.com/a/109324/455524 – Roshan Kumar Sep 28 '15 at 14:34

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