Hi All – if you have ditched NetworkManager (as I have) and you are still running into wireless LAN access problems…check out this script!<\/p>\n
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I am in quite a rush so no time to explain the script…but check out the commands (and the order of the commands) and Enjoy \ud83d\ude42<\/p>\n
You must already have Enjoy!<\/p>\n","protected":false},"excerpt":{"rendered":" Hi All – if you have ditched NetworkManager (as I have) and you are still running …<\/p>\nwpa_supplicant<\/code> configured properly for these commands to work.<\/p>\n\r\n#!\/bin\/bash\r\n# 20150217, ABr: Updated to have extensive additional code for wireless update\r\n\r\nl_process=1\r\nif ip a show wlan0 | grep --quiet -e \"inet [0-9]\\+\\.\" 2>\/dev\/null; then\r\n echo \"Looks like you already have a wireless IP. Is there a problem?\"\r\n l_process=0\r\nfi\r\n\r\nl_fixed=1\r\nif [ $l_process -eq 1 ]; then\r\n l_fixed=0\r\n\r\n # first, bring everything down\r\n sudo service network stop\r\n\r\n # next, unblock wifi\r\n sudo rfkill unblock wifi\r\n\r\n # bring up the network\r\n sudo service network start\r\n\r\n # do we have an IP?\r\n if ip a show wlan0 | grep --quiet -e \"inet [0-9]\\+\\.\" 2>\/dev\/null; then\r\n echo \"Wireless IP network found; we win.\"\r\n l_fixed=1\r\n else\r\n echo \"No IP network found, bouncing wifi...\"\r\n sudo ifdown wlan0\r\n # wait to give wifi time to initialize\r\n sleep 3\r\n sudo ifup wlan0\r\n\r\n # final check\r\n if ip a | grep --quiet -e \"inet 192\" 2>\/dev\/null; then\r\n echo \"IP network found; victory!\"\r\n l_fixed=1\r\n else\r\n echo \"IP network not created, going for Round 2.\"\r\n fi\r\n fi\r\nfi\r\n\r\nif [ $l_fixed -eq 0 ]; then\r\n echo \"So the wireless thinks it won't work, eh?\"\r\n echo \"Time for the heavy artillery.\"\r\n echo \"Firing all salvos!\"\r\n echo \" Stop the network (again)...\"\r\n service network stop >\/dev\/null 2>&1\r\n echo \" Killing all wpa_supplicant instances...\"\r\n l_wpas=$(ps -efa | grep wpa | grep -v grep | sed -e 's# \\+# #g' | cut -d' ' -f 2)\r\n for i in $l_wpas; do\r\n kill -9 $i\r\n done\r\n echo \" Starting the network...\"\r\n service network start >\/dev\/null 2>&1\r\n echo \" Force wireless down...\"\r\n ifdown wlan0\r\n echo \" Unblock wireless...\"\r\n rfkill unblock all\r\n echo \" Forcing the wireless card up...\"\r\n ifconfig wlan0 up\r\n echo \" Forcing wpa_supplicant to start...\"\r\n wpa_supplicant -iwlan0 -c\/etc\/wpa_supplicant\/wpa_supplicant.conf -Dwext &\r\n echo \" Forcing IP address...\"\r\n ifup wlan0\r\n if ip a | grep --quiet -e \"inet 192\" 2>\/dev\/null; then\r\n echo \"IP network found; victory!\"\r\n else\r\n echo \"No IP network, track down Andy again.\"\r\n fi\r\nfi<\/code><\/pre>\n