I am having problems connecting to Wifi with a dell laptop, using BCM43224 , 14e4:4353. Sometimes it works fine but on other days I am unable to access any webpages although I can see the network name and % signal strength in the corner. Sometimes it will not connect to this network. Sometimes, it will connect, but I will not be able to access any pages. I have tried rebooting, logging in and logging out, and activating and deactivating Wifi, which are all unsuccessful. Sometimes after a suspend it will not connect to Wifi. Each time the Wifi did not work, I tested the Internet with another device and it worked fine, to verify that the problem was not the network/internet connection. I think the current driver is brcmsmac, posted details below.
Should I try the b43 driver, or what should I do instead or in addition? I found this page Installing Broadcom Wireless Drivers which lists 4353 as a special case, but I am not sure what that means for how to modify the instructions, however on this page http://linuxwireless.sipsolutions.net/en/users/Drivers/b43/ it states that the b43 driver will work for 3.1+ (not sure what the 3.1 refers to).
Thanks!
Edit: answers to the questions asked below. I did see the text for special case #1 but I still don't know what it means, based on your answer I think maybe that I am already using the b43 driver and there is nothing to be done on the driver level? Perhaps it is time for a new wireless card?
$ lsb_release -d
Description: Linux Mint 17.1 Rebecca
$ lsmod | grep -e wl -e brcmsmac -e b43
brcmsmac 563041 0
cordic 12574 1 brcmsmac
brcmutil 15618 1 brcmsmac
b43 387371 0
mac80211 630653 2 b43,brcmsmac
cfg80211 484040 3 b43,brcmsmac,mac80211
ssb 62379 1 b43
bcma 52096 3 b43,brcmsmac
$ uname -r
3.13.0-37-generic
2nd edit: Do not know if this is important, but while the computer loads, I briefly get the following message:
brcmsmac bcma0:0: ms_ops_bss_info_changed: qos enabled: false (implement)
brcmsmac bcma0:0: brcms_ops_config: change power-save mode: false (implement)
Edit 10/20/2015: I bought a new wireless card and it still does not connect to the Internet so I do not believe that is the problem. Are there any suggestions on how I can troubleshoot this? The only other step I can think of it to buy a new computer which will be expensive and troublesome. Is there an Internet forum where I can post questions on this?