Dell N5040 Wifi works randomly.

Hello everyone. I installed Arch recently and everything works fine except for the wifi. I can use wifi-menu to connect to my network, but the connection will only work randomly.
I have to connect multiple times to get it to work. The connection is not dropped and iwconfig reports a signal strength above 80%, but if I try to ping google.com, it simply hangs there without any output. Sometimes, the connection will work for the first few seconds and then stop, without disconnecting. Also, I am not able to load any webpage when it does that. The browser just keeps saying "Connecting to ...". I have already tried to put ipv6.disable=1 in my kernel line with no results. Here is my iwconfig output:
[cgroza@CArch ~]$ iwconfig
enp19s0 no wireless extensions.
wlp18s0 IEEE 802.11bgn ESSID:"BELL056"
Mode:Managed Frequency:2.452 GHz Access Point: 2C:E4:12:A4:C3:7F
Bit Rate=28.9 Mb/s Tx-Power=19 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=67/70 Signal level=-43 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:136 Invalid misc:2 Missed beacon:0
lo no wireless extensions.
I am posting from Arch, because this is one of the random times when wifi actually works.
This is my wifi card:
12:00.0 Network controller: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller (rev 01)
I am using the default driver included in the kernel.
Thank you for your assistance.
Last edited by cgroza (2013-10-09 20:49:25)

I tried doing this. I followed the instruction on the wiki. The module was loaded and my networks were detected but wifi-menu could not connect. No error whatsoever. iwconfig confirms this. So I had to undo the changes to get the random functionality back.
Thank you for your time anyway.

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