Trage wifi verbinding in Ubuntu 10.04

[m1dnigh7]

Hallo beste mensen,

Ik ben sinds kort ubuntu gaan gebruiken omdat ik nog nooit met linux gewerkt heb, en het dus wel degelijk een handicap vind. Dus mijn ervaring is 0,0.

Alles werkt en ik kan vrij goed werken met de GUI ondertussen. Basistaken weliswaar. Maar er is een probleem met mijn wifi. Ik heb een intel 4965AG wifi kaart, en deze heeft énorm trage download speed. 0,7 mbit om exact te zij, zelfs over lan. Nu heb ik al enkele threads gevonden via google maar daar spreken ze allemaal in moeilijke termen en terminal commandos. Vaak gaat het ook over een net andere wifi kaart dan de mijne, en geraak er bijgevolg dus niet aan uit. Ik kom hier beroepen doen op jullie, of jullie mij zouden willen helpen dit probleem te verhelpen, want ik zou het jammer vinden om linux niet meer te gebruiken door zo een dom probleem.

Wat ik ondertussen al geprobeerd heb:

sudo iwconfig wlan0 rate 54M

Maar dit hielp dus niet

Mvg, Christophe

[Anoniem: 393864]

Ik heb een intel 4965AG wifi kaart, en deze heeft énorm trage download speed. 0,7 mbit om exact te zij, zelfs over lan.

Je lan-kabel is niet op deze kaart aangesloten. Het is dus waarschijnlijk geen probleem met drivers. Dit concludeer ik omdat volgens jou het probleem zich voordoet bij 2 verschillende hardwarecomponenten.

[Voor 3% gewijzigd door Anoniem: 393864 op 09-06-2011 18:04]

[m1dnigh7]

Ach sorry, ik bedoelde, als ik bijvoorbeeld een fimpje probeer af te spelen van een netwerkschijf (mijn desktop dan). Niet via de kabel. Mijn kabel is kapot, dus kan dat niet testen voorlopig.

[Anoniem: 393864]

Ik begrijp dat je niet bekend bent met de terminal en commando's.
Toch wil ik je verwijzen naar deze link: http://kuscsik.blogspot.c...-intel-4965-wireless.html
voor al deze commando's 1 voor 1 uit

[Voor 9% gewijzigd door Anoniem: 393864 op 09-06-2011 18:10]

[m1dnigh7]

Bedankt alvast, ga het meteen lezen. Ik ging net editen, dat ik m'n kabel uit m'n desktop getrokken heb om de bedraadde verbinding te testen op m'n laptop, en ik nu dus wél degelijke snelheden haal.
Nu even lezen!

[Voor 13% gewijzigd door m1dnigh7 op 09-06-2011 18:12]

[Beatboxx]

Dit kun je achterhalen door in een Terminal het volgende te typen en op Enter te drukken:

code:

lspci

Dan spuugt dat een lijst uit met alle apparaten die op de PCI bus zitten, daar zal je Wifi chip ongetwijfeld bij zitten. Het zal een Network Controller zijn, dus als je die hier zou vermelden, dan is hier beter in te schatten hoe de driver voor dat model is n dus wat je moet installeren.

[Anoniem: 393864]

probeer dit commando eens in de terminal uit te voeren:

code:

sudo modprobe iwl4965

[m1dnigh7]

Als ik 'lspci' uitgevoerd had, stond mijn wifi adapter er inderdaad tussen:

0b:00.0 Network controller: Intel Corporation PRO/Wireless 4965 AG or AGN [Kedron] Network Connection (rev 61)

Als ik die 'sudi modprobe iwl4965' uitvoer, krijg ik geen uitvoer terug.

En de download links van intellinuxwireless.org zijn offline, de hele site eigenlijk.

[Anoniem: 393864]

'sudi modprobe iwl4965'

moet zijn:

code:

sudo modprobe iwl4965

[m1dnigh7]

Verdorie, was hier een typo, mijn excuses. Ik had inderdaad het correcte commando uitgevoerd.

[Beatboxx]

Kijk hier eens: http://ubuntuforums.org/showthread.php?t=1118935

[Anoniem: 393864]

probeer de laatste ubuntu-updates eens binnen te halen.
daar wordt in dit recente topic over gesproken:
http://ubuntuforums.org/showthread.php?t=1741728

[m1dnigh7]

Oke, de updates zijn gedaan maar dit verhielp het probleem niet.

Vervolgens ben ik deze thread tegengekomen:

http://ubuntuforums.org/showthread.php?p=2690284

Ik heb de driver van de dellwebsite gehaald, en deze staat nu in mjn homedirectory uitgepakt.

Dan heb ik de stappen gevolgd die de man op dat forum zegt, en alles werkt tot en met ndiswrapper -l. Dan zegt hij invalid driver. Ik zal hier even posten hoe ik het gedaan heb voor de duidelijkheid.

christophe@Dell-XPS:~$ ndiswrapper -i NETw4v32.INF
couldn't create /etc/ndiswrapper/netw4v32: Permission denied at /usr/sbin/ndiswrapper-1.9 line 194.
christophe@Dell-XPS:~$ sudo ndiswrapper -i NETw4v32.INF
[sudo] password for christophe:
installing netw4v32 ...
couldn't find "NETw4v32.sys" in "."; make sure all driver files, including .inf, .sys (and any firmware files) are in "." -
installation may be incomplete
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christophe@Dell-XPS:~$ sudo ndiswrapper -i NETw4v32.INF
driver netw4v32 is already installed
christophe@Dell-XPS:~$ ndiswrapper -m
adding "alias wlan0 ndiswrapper" to /etc/modprobe.d/ndiswrapper.conf ...
sh: cannot create /etc/modprobe.d/ndiswrapper.conf: Permission denied
couldn't add module alias: at /usr/sbin/ndiswrapper-1.9 line 882.
christophe@Dell-XPS:~$ sudo ndiswrapper -m
adding "alias wlan0 ndiswrapper" to /etc/modprobe.d/ndiswrapper.conf ...
christophe@Dell-XPS:~$ sudo ndiswrapper -l
netw4v32 : invalid driver!
christophe@Dell-XPS:~$ sudo ndiswrapper -i NETw4v32.INF
driver netw4v32 is already installed
christophe@Dell-XPS:~$ sudo ndiswrapper -m
module configuration already contains alias directive

christophe@Dell-XPS:~$ sudo ndiswrapper -l
netw4v32 : invalid driver!
christophe@Dell-XPS:~$

[Anoniem: 393864]

al een reboot gedaan?

[m1dnigh7]

Ik heb dus die reboot gedaan, en nu werkt het beter. op www.speedtest.net haal ik wel mijn snelheid nog niet maar in pieken haal ik soms wel eens 10 mbit (van de 30 normaal gezien), maar dat kan nog te wijten zijn aan het feit dat het om wifi gaat. Nu test ik het even door een grote file te kopieren van mn servertje, en haal ik een snelheid van 1.0 - 1.3 MB/s

[Voor 10% gewijzigd door m1dnigh7 op 09-06-2011 19:10]

[Anoniem: 393864]

fijn! die snelheidsverschillen zijn waarschijnlijk inderdaad te wijten aan een instabiele wifi-verbinding

edit: zit je erg ver weg van je modem/router?

[Voor 18% gewijzigd door Anoniem: 393864 op 09-06-2011 19:11]

[m1dnigh7]

Nogmaals hartelijk dank voor de hulp beste LSWaard!

[gertvdijk]

Ndiswrapper gaan gebruiken voor Intel wifi is wel écht een noodmaatregel. Er is normaliter echt niks mis met de iwlagn driver voor de 4965.
Had je alle updates gedraaid? Kernel voornamelijk, en linux-firmware zijn van belang. Daarna reboot uiteraard.

Zelf heb ik een 3945 kaartje en daarvan was er een tijdje een bug in de kernel waardoor de snelheid wat te wensen overliet; zeg 1Mbit maximaal...

[Anoniem: 393864]

De updates+reboot zijn waarschijnlijk de oplossing geweest.

[Voor 6% gewijzigd door Anoniem: 393864 op 09-06-2011 19:30]

[m1dnigh7]

En hoe kan ik die ndiswrapper dan "verwijderen" als het ware? want ik snap ook niet helemaal wat dat nu net doet.. Want inderdaad, de updates en de reboot hebben volgens mij ook het probleem verholpen.

[gertvdijk]

m1dnigh7 schreef op donderdag 09 juni 2011 @ 21:15:
En hoe kan ik die ndiswrapper dan "verwijderen" als het ware? want ik snap ook niet helemaal wat dat nu net doet.. Want inderdaad, de updates en de reboot hebben volgens mij ook het probleem verholpen.

Hoe heb je het geïnstalleerd? Als je dat met je packagemanager hebt gedaan (apt-get, aptitude, synaptics, etc.) dan kan je hem op eenzelfde manier ook weer verwijderen, vervang 'install' door 'remove' of 'purge' (ook config weg).

Na het updaten vertelt de update manager je toch dat je je systeem moet rebooten voor het effect hebben van de updates? Vaak is het reloaden van een service ook voldoende, maar een kernel updaten moet ook tegenwoordig nog met een reboot. Met Ksplice zou dat in de toekomst ook niet meer nodig zijn overigens.