RTL8101E/RTL8102E PCIĮxpress Fast Ethernet controller (rev 05) Lspci -nnk | grep -iA2 net 01:00.0 Ethernet controller : Realtek Semiconductor Co., Ltd. When solution 1 failed, I tried solution 2 as shown here below lspci -nnk | grep -iA2 net If no file exists, create a new file gksudo gedit /etc/modprobe.d/nfĪdd a new line: options iwlwifi 11n_disable=1 sudo gedit /etc/modprobe.d/Įdit the line that says options iwlwifi 11n_disable=1 Look into /etc/modprobe.d whether there are any file like nf then edit the file. Now try to reconnect, if it helps follow below steps Looks like this hardware has some problem with N configuration in WiFi. conf file and edited it as directed in the last part of this solution but it didn't work and I was unable to go beyond that I had read a solution that was giving the steps below if I had succeeded. I find the file nf~ and try: /etc/modprobe.d$ sudo modprobe -r nf~ Then I go back to the /etc and try $ cd /etc Here I find the directory modprobe.d but modprobe does not exist so I try $ cd modprobe.d This so what I have so far done and the answers I get $ sudo modprobe -r iwlwifiįATAL: Error running remove command for iwlwifi I have tried out some of the solutions suggested but it still doesn't work. It worked well for a few weeks and now won't work anymore although it still works for the windows. Hi I recently installed Ubuntu 13.10 on my laptop alongside windows.

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