Wifi disconnecting on Linux Mint [closed]

Question

hello everyone i am new to Linux Mint 17 and enthusiastic for learning,adopting and sharing linux.my experience with linux is all good except now i am unable to constatnly connect to my network same network is running very smoothly on my fellow's windows 10.i read every thread regarding this and applied all commands and i think i am mess up too. here is what my problem

wifi keep disconnects

output of ‍sudo lspci -vnn | grep Network‍:

01:00.0 Network controller [0280]: Ralink corp. Device [1814:539a]

output of *iwconfig*  
 eth0      no wireless extensions.

lo        no wireless extensions.

wlan0     IEEE 802.11bgn  ESSID:"WI-FI-LH"  
          Mode:Managed  Frequency:2.412 GHz  Access Point: [REDACTED]   
          Bit Rate=43.3 Mb/s   Tx-Power=20 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=43/70  Signal level=-67 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:82334  Invalid misc:6464   Missed beacon:0

here is what i have done reading help threads

installed firmware-b43-installer b43-fwcutter

i have add iwconfig wlan0 rate 54M in /etc/rc.local

i put a # infront of the line blacklistbcm43xx in etc/modprobe/blacklist.conf

i also tried wicd but then unistall because it wasnt satisfactory

looking forward for any help which could solve my wifi issue and increase speed of my wifi(i mean speed that i was enjoying in windows os) any help will be highly appreciated.i have also surf 10 to 15 days searching for help so if you please help me on priority bases i will be thankfull because these are my exams days.

Answer 1

The driver for your device, rt2800pci is notoriously tricky. Neverthe less, there are some things we might try.

First, check the settings in the router. WPA2-AES is preferred; not any WPA and WPA2 mixed mode and certainly not TKIP. Second, if your router is capable of N speeds, you may have better connectivity with a channel width of 20 MHz in the 2.4 GHz band instead of automatic 20/40 MHz, although it is likely to affect N speeds. I also have better luck with a fixed channel, either 1, 6 or 11, rather than automatic channel selection. Also, be certain the router is not set to use N speeds only; auto B, G and N is preferred. After making these changes, reboot the router.

Then set your regulatory domain explicitly. Check yours:

sudo iw reg get

If you get 00, that is a one-size-maybe-fits-all setting. Find yours here: http://en.wikipedia.org/wiki/ISO_3166-1_alpha-2 Then set it temporarily:

sudo iw reg set IS

Of course, substitute your country code if not Iceland. Set it permanently:

gksudo gedit /etc/default/crda

Use nano or kate or leafpad if you don't have the text editor gedit.

Change the last line to read:

REGDOMAIN=IS

Proofread carefully, save and close the text editor.

Next, I'd set IPv6 to Ignore in Network Manager: http://docs.fedoraproject.org/en-US/Fedora/18/html/Installation_Guide/images/netconfig/network-connections-ipv6-ignore.png This example is for ethernet, but you want wireless.

If these changes do not help, please try:

sudo modprobe -r rt2800pci
sudo modprobe rt2800pci nohwcrypt=1

After trying it for a few hours, if it helps, make it permanent:

sudo -i
echo "options rt2800pci nohwcrypt=1"  >>  /etc/modprobe.d/rt2800pci.conf
exit

We might also disable power saving in Network Manager:

sudo sed -i 's/3/2/' /etc/NetworkManager/conf.d/*

Finally, I worked on a recent case where N speeds in the router were actually slower! Please try setting your router to 802.11B and G without N.