I have recenty installed ubuntu 14.04 LTS 64 bit. My university provides cyberoam wifi connection. After 5 seconds to 1 minute, internet stops working and then wifi disconnects. I have to disable wifi and re-enable to connect with the network again.
Network controller: Broadcom Corporation BCM43142 802.11b/g/n (rev 01)
I have already done this
echo "options iwlwifi 11n_disable=1" | sudo tee /etc/modprobe.d/iwlwifi.conf sudo modprobe -rfv iwlwifi sudo modprobe -v iwlwifi sudo sh -c 'echo "options iwlwifi 11n_disable=1" >> /etc/modprobe.d/iwlwifi.conf'
On ubuntu 12.04 and windows, wifi is working fine.
I followed this link
my PCI.ID is 14e4:4365 rev 01 . So Special Case #2 . Tried steps as mentioned but still same problem.
I am facing this problem only on my college cyberoam wifi network. Problem is with ubuntu 14.04 because this network is working fine with ubuntu 12.04 and windows.