Internet Connectivity Issue - Dual Boot

[Arwa]

Hi
I have a system with Dual boot Centos 7 & Windows 7.
Everytiime i Login to Centos my Wifi doesn't connect to the internet, only way to connect is to first boot the system to windows then restart and load to Centos 7 (This way my system connects to Wifi immediately without any issue)
Could anyone help me figure out how to fix this issue so i don't have to Boot to Windows system all the time.

[TrevorH]

Post the output of lspci -nn | grep -i net

[Arwa]

Hi @ TrevorH
Thanks a bunch for looking into this.
Here are the result for lspci -nn | grep -i net

02:00.0 Network controller [0280]: Broadcom Corporation BCM4313 802.11bgn Wireless Network Adapter [14e4:4727] (rev 01)
03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 07)

[TrevorH]

Look at the output from the dmesg command when it does not work and see if you can see anything there that looks like an error. The sort of things I'm thinking about might be that it's searching for a file from /lib/firmware to load into the adapter and not finding it. If you boot windows first and then warm boot into Linux, perhaps windows loads the firmware for you and it survives the reboot.

[Arwa]

@TrevorH

Thanks Again,
This is what i see when the system booted directly to Centos. (This is when the internet is not connected)

[ 84.286409] wlp2s0: authenticate with 20:e5:2a:44:21:7e
[ 84.290714] wlp2s0: direct probe to 20:e5:2a:44:21:7e (try 1/3)
[ 84.491492] wlp2s0: direct probe to 20:e5:2a:44:21:7e (try 2/3)
[ 84.692372] wlp2s0: direct probe to 20:e5:2a:44:21:7e (try 3/3)
[ 84.893117] wlp2s0: authentication with 20:e5:2a:44:21:7e timed out
[ 85.909056] wlp2s0: authenticate with 20:e5:2a:44:21:7e
[ 85.909952] wlp2s0: direct probe to 20:e5:2a:44:21:7e (try 1/3)
[ 86.110258] wlp2s0: direct probe to 20:e5:2a:44:21:7e (try 2/3)
[ 86.311099] wlp2s0: direct probe to 20:e5:2a:44:21:7e (try 3/3)
[ 86.512038] wlp2s0: authentication with 20:e5:2a:44:21:7e timed out
[ 87.928010] wlp2s0: authenticate with 20:e5:2a:44:21:7e
[ 87.930107] wlp2s0: send auth to 20:e5:2a:44:21:7e (try 1/3)
[ 87.963640] wlp2s0: send auth to 20:e5:2a:44:21:7e (try 2/3)
[ 88.034407] wlp2s0: send auth to 20:e5:2a:44:21:7e (try 3/3)
[ 88.100786] wlp2s0: authentication with 20:e5:2a:44:21:7e timed out
[ 101.844036] wlp2s0: authenticate with 20:e5:2a:44:21:7e
[ 101.844565] wlp2s0: send auth to 20:e5:2a:44:21:7e (try 1/3)
[ 101.871505] wlp2s0: send auth to 20:e5:2a:44:21:7e (try 2/3)
[ 101.968533] wlp2s0: send auth to 20:e5:2a:44:21:7e (try 3/3)
[ 102.059085] wlp2s0: authentication with 20:e5:2a:44:21:7e timed out
[ 113.881818] wlp2s0: authenticate with 20:e5:2a:44:21:7e
[ 113.882786] wlp2s0: direct probe to 20:e5:2a:44:21:7e (try 1/3)
[ 114.083052] wlp2s0: direct probe to 20:e5:2a:44:21:7e (try 2/3)
[ 114.283924] wlp2s0: direct probe to 20:e5:2a:44:21:7e (try 3/3)
[ 114.484688] wlp2s0: authentication with 20:e5:2a:44:21:7e timed out
[ 123.785352] usb 4-3: USB disconnect, device number 2
[ 125.393496] wlp2s0: authenticate with 20:e5:2a:44:21:7e
[ 125.394737] wlp2s0: direct probe to 20:e5:2a:44:21:7e (try 1/3)
[ 125.595545] wlp2s0: direct probe to 20:e5:2a:44:21:7e (try 2/3)
[ 125.796623] wlp2s0: direct probe to 20:e5:2a:44:21:7e (try 3/3)
[ 125.997260] wlp2s0: authentication with 20:e5:2a:44:21:7e timed out
[ 134.143017] wlp2s0: authenticate with 20:e5:2a:44:21:7e
[ 134.144118] wlp2s0: direct probe to 20:e5:2a:44:21:7e (try 1/3)
[ 134.344408] wlp2s0: direct probe to 20:e5:2a:44:21:7e (try 2/3)
[ 134.545243] wlp2s0: direct probe to 20:e5:2a:44:21:7e (try 3/3)
[ 134.746020] wlp2s0: authentication with 20:e5:2a:44:21:7e timed out
[ 157.476492] wlp2s0: authenticate with 20:e5:2a:44:21:7e
[ 157.477010] wlp2s0: direct probe to 20:e5:2a:44:21:7e (try 1/3)
[ 157.677422] wlp2s0: direct probe to 20:e5:2a:44:21:7e (try 2/3)
[ 157.878259] wlp2s0: direct probe to 20:e5:2a:44:21:7e (try 3/3)
[ 158.079113] wlp2s0: authentication with 20:e5:2a:44:21:7e timed out
[ 159.122833] wlp2s0: authenticate with 20:e5:2a:44:21:7e
[ 159.124502] wlp2s0: direct probe to 20:e5:2a:44:21:7e (try 1/3)
[ 159.325217] wlp2s0: direct probe to 20:e5:2a:44:21:7e (try 2/3)
[ 159.526031] wlp2s0: direct probe to 20:e5:2a:44:21:7e (try 3/3)
[ 159.726925] wlp2s0: authentication with 20:e5:2a:44:21:7e timed out
[ 170.635687] wlp2s0: authenticate with 20:e5:2a:44:21:7e
[ 170.637323] wlp2s0: direct probe to 20:e5:2a:44:21:7e (try 1/3)
[ 170.837837] wlp2s0: direct probe to 20:e5:2a:44:21:7e (try 2/3)
[ 171.038688] wlp2s0: direct probe to 20:e5:2a:44:21:7e (try 3/3)
[ 171.239544] wlp2s0: authentication with 20:e5:2a:44:21:7e timed out

After restarting from the windows to Centos the system connects to the internet and i see,

[ 21.083967] wlp2s0: authenticate with 20:e5:2a:44:21:7e
[ 21.087500] wlp2s0: send auth to 20:e5:2a:44:21:7e (try 1/3)
[ 21.088945] wlp2s0: authenticated
[ 21.090348] wlp2s0: associate with 20:e5:2a:44:21:7e (try 1/3)
[ 21.093961] wlp2s0: RX AssocResp from 20:e5:2a:44:21:7e (capab=0x411 status=0 aid=3)
[ 21.094478] brcmsmac bcma0:0: brcmsmac: brcms_ops_bss_info_changed: associated
[ 21.094486] brcmsmac bcma0:0: brcms_ops_bss_info_changed: qos enabled: true (implement)
[ 21.094505] wlp2s0: associated

[Arwa]

Hi @TrevorH
To avoid this situation i even clean installed CentOs (Now i don't have Windows OS in machine) - SIngle OS and its CentOS.
Wifi is not connecting.
Not sure how to install or update the wifi Drivers, Please guide.
Tried the steps in this link and still not working
http://wiki.centos.org/HowTos/Laptops/Wireless/Broadcom
please guide.

Thanks
Arwa