linux mint

umbloaded · 04-11-2015, 06:42 AM

Hi, I'm running Linux Mint 17.1 and the Internet connections generally works well but sometime it is slow and pages take many seconds to load or the connection fails.
The driver is the wikidevi suggested for my card and signal is good, do you have any idea about this problem ?

Thanks

floppy_stuttgart · 04-11-2015, 06:51 AM

please give the outputs of
lspci or lsusb (only what indicate your card) and
dmesg (only what indicate connection start/ stop / restart..).

JeremyBoden · 04-11-2015, 07:33 AM

Have you tried one of the many speedtest web sites?

Could it be network congestion such as other PC's on the same connection or
congestion at peak times (evenings)?

The command

Code:

sudo iwconfig

may give useful information...

umbloaded · 04-11-2015, 07:34 AM

No there is no network congestion, speed test latency is around 180 while normally is around 60

lsusb

Code:

NetGear, Inc. WG111v3 54 Mbps Wireless [realtek RTL8187B]

dmesg

Code:

[ 2782.240686] wlan0: associated
[ 2782.240733] cfg80211: Calling CRDA for country: CA
[ 2782.243241] cfg80211: Regulatory domain changed to country: CA
[ 2782.243245] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[ 2782.243247] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2700 mBm)
[ 2782.243249] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 1700 mBm)
[ 2782.243251] cfg80211:   (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 2782.243252] cfg80211:   (5490000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 2782.243254] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 3000 mBm)
[ 2783.263981] wlan0: deauthenticated from **:**:**:**:**:** (Reason: 2)
[ 2783.398298] cfg80211: Calling CRDA to update world regulatory domain
[ 2783.404567] cfg80211: World regulatory domain updated:
[ 2783.404575] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[ 2783.404580] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 2783.404586] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 2783.404590] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[ 2783.404593] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 2783.404597] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 2789.188520] wlan0: authenticate with **:**:**:**:**:**
[ 2789.370243] wlan0: send auth to **:**:**:**:**:** (try 1/3)
[ 2789.371615] wlan0: authenticated
[ 2789.372204] wlan0: associate with **:**:**:**:**:** (try 1/3)
[ 2789.374160] wlan0: RX AssocResp from **:**:**:**:**:** (capab=0x411 status=0 aid=1)
[ 2789.377659] wlan0: associated
[ 2789.377753] cfg80211: Calling CRDA for country: CA
[ 2789.381824] cfg80211: Regulatory domain changed to country: CA
[ 2789.381828] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[ 2789.381830] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2700 mBm)
[ 2789.381832] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 1700 mBm)
[ 2789.381834] cfg80211:   (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 2789.381835] cfg80211:   (5490000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 2789.381837] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 3000 mBm)
[ 5190.800465] ecryptfs_decrypt_page: Error attempting to read lower page; rc = [-4]
[ 5190.800469] ecryptfs_readpage: Error decrypting page; rc = [-4]
[ 5224.645442] systemd-hostnamed[3791]: Warning: nss-myhostname is not installed. Changing the local hostname might make it unresolveable. Please install nss-myhostname!

iwconfig

Code:

wlan0     IEEE 802.11bg  ESSID:"wifi"  
          Mode:Managed  Frequency:2.412 GHz  Access Point: **:**:**:**:**:**   
          Bit Rate=11 Mb/s   Tx-Power=20 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=70/70  Signal level=-17 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:572  Invalid misc:64   Missed beacon:0

floppy_stuttgart · 04-11-2015, 08:38 AM

What is the ID of your chip? (read it with lsusb -> xxxx:yyyy)
https://help.ubuntu.com/community/Wi...ealtekRTL8187b
http://wiki.ubuntuusers.de/WLAN/ChipsC3%A4tze
seems ndiswrapper is an option..

umbloaded · 04-11-2015, 09:00 AM

0846:4260

floppy_stuttgart · 04-12-2015, 03:38 AM

Quote:

Originally Posted by umbloaded

0846:4260

google "linux driver for 0846:4260" and you will find few things.
One artcle from 2012 say "if you have performance problems, use ndiswrapper".
So, I would give a try to ndiswrapper (use of windows driver file = workaround in case a linux driver is not the optimal).
http://blog.pboehm.org/blog/2012/12/...x-ndiswrapper/
I personally already used ndiswrapper with a usb fritz wlan stick 057c:5601
It was working fine.
Perhaps somebody has a better idea.

ardvark71 · 04-12-2015, 12:02 PM

Hi...

I'm not sure if this will be applicable in your case, meaning if someone else can help you fix the issue with your current adapter but if not, another suggestion would be to purchase another Linux compatible adapter, like the one listed here. I personally own one of these adapters and I've never had an issue with it on any Linux system that had a driver for it.

Regards...

joe_2000 · 04-12-2015, 03:00 PM

On some adapters it helps to turn power management off:

Code:

iwconfig wlan0 power off

umbloaded · 04-19-2015, 01:21 PM

I've tried ndiswrapper but works worse than with linux driver