Slow, very slow internet

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Slow, very slow internet

Postby braveheart89 on Mon Mar 25, 2013 1:23 pm

I installed Linux Mint for my father. Now he is complaining about very slow internet (wireless). Being far away from him, I asked him to give me the result of a few lines of code. Maybe you can figure it out what is going on:
The result of iwconfig:

Code: Select all
wlan0     IEEE 802.11bgn  ESSID:"default" 
          Mode:Managed  Frequency:2.462 GHz  Access Point: 00:50:18:3E:E0:30   
          Bit Rate=54 Mb/s   Tx-Power=15 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=57/70  Signal level=-53 dBm 
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:4  Invalid misc:112   Missed beacon:0

lo        no wireless extensions.

eth0      no wireless extensions.


and the result of lspci|grep Ethernet
Code: Select all
 02:00.0 Ethernet controller: Broadcom Corporation NetLink BCM57785 Gigabit Ethernet PCIe (rev 10)]


Any help is appreciated.
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Re: Slow, very slow internet

Postby DrHu on Mon Mar 25, 2013 1:51 pm

Which wireless card ?
Code: Select all
iwconfig wlan0

http://www.hpl.hp.com/personal/Jean_Tou ... Tools.html
https://en.wikipedia.org/wiki/Wireless_tools_for_Linux

Code: Select all
iwconfig manipulate the basic wireless parameters
iwlist allow to initiate scanning and list frequencies, bit-rates, encryption keys...
iwspy allow to get per node link quality
iwpriv allow to manipulate the Wireless Extensions specific to a driver (private)
ifrename allow to name interfaces based on various static criteria

    If it is a broadcom wireless, check the forums or the Internet for issues with that particular device.
http://www.phoronix.com/scan.php?page=n ... &px=ODU4Mg

The only item I can see is power management being ON
http://uselessuseofcat.com/?p=67
--to get most performance, it should probably just be OFF (powered all the time), and keep alive

Linux arch wireless guides,,p.
https://wiki.archlinux.org/index.php/Wireless_Setup
--lots of info there
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Re: Slow, very slow internet

Postby braveheart89 on Tue Mar 26, 2013 4:55 am

It is like you said, DrHu, it is the powermanagement. When my dad goes into batterymode, he cannot get an internetconnection.

Thank you for your answer, DrHu.
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