wifi / wireless LAN

setup / configure wifi

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change the hostname

run sudo nano /etc/hosts

127.0.0.1       localhost
::1             localhost ip6-localhost ip6-loopback
ff02::1         ip6-allnodes
ff02::2         ip6-allrouters

127.0.1.1       raspberrypi

change the line containing raspberrypi to your need. press CTRL + X to close the editor

run sudo nano /etc/hostname

raspberrypi

replace the default raspberrypi with the same hostname from the step above. press CTRL + X to close the editor

run sudo /etc/init.d/hostname.sh to commit the changes to the system

run sudo reboot to reboot the system for the changes to take effect

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disable power management on RTL8192CU chipsets

run lsmod to check the chipset

Module                  Size  Used by
cfg80211              419759  0
rfkill                 16659  2 cfg80211
8192cu                528485  0
snd_bcm2835            19739  0
bcm2835_gpiomem         3023  0
snd_pcm                74833  1 snd_bcm2835
snd_timer              18164  1 snd_pcm
snd                    52116  3 snd_bcm2835,snd_timer,snd_pcm
uio_pdrv_genirq         2966  0
uio                     8228  1 uio_pdrv_genirq
ipv6                  341380  32

run sudo nano /etc/modprobe.d/8192cu.conf

and add the following line:

options 8192cu rtw_power_mgnt=0 rtw_enusbss=0

press CTRL + X to close the editor saving the file

run sudo reboot to reboot the system for the changes to take effect

more options

rtw_power_mgnt

• 0 : disable power saving
• 1 : power saving on, minPS
• 2 : power saving on, maxPS

rtw_enusbss

• 0 : disable auto suspend
• 1 : enable auto suspend

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