My Dell XPS 13 have a terrible connection and I have a limited range of where it will connect to my router(15-20ft). I have tried to turn off the power manager but it doesn't seem to make too much of a difference.
sudo modprobe iwlwifi 11n_disable=1
I also tried to disable hardware. I didn't notice too much of a difference. But I could have also done it incorrectly. (how do I know if I did this right/wrong?)
lshw -C network *-network description: Wireless interface product: Centrino Advanced-N 6235 vendor: Intel Corporation physical id: 0 bus info: pci@0000:01:00.0 logical name: wlan0 version: 24 serial: c8:f7:33:ca:53:2d width: 64 bits clock: 33MHz capabilities: bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=iwlwifi driverversion=3.13.0-29-generic firmware=18.104.22.168 ip=10.0.0.22 latency=0 link=yes multicast=yes wireless=IEEE 802.11abgn resources: irq:45 memory:d0400000-d0401fff
lo no wireless extensions. wlan0 IEEE 802.11abgn ESSID:"HOME-32E2" Mode:Managed Frequency:2.462 GHz Access Point: 0C:F8:93:A9:32:E0 Bit Rate=27 Mb/s Tx-Power=15 dBm Retry long limit:7 RTS thr:off Fragment thr:off Encryption key:off Power Management:off Link Quality=47/70 Signal level=-63 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:244 Invalid misc:143699 Missed beacon:0