Ubuntun dokumentaatio-wikin tekoon osallistuneet
Phil Bull
philbull@gmail.com
Some device drivers don’t work very well with certain wireless adapters, so you may need to find a better one.
Timo Jyrinki
timo.jyrinki@iki.fi 2012.
Jiri Grönroos
jiri.gronroos+l10n@iki.fi 2012-2020.

# Langattoman verkon vianselvitys

Varmista, että toimivat laitteistoajurit on asennettu

Tässä vaiheessa tarkistetaan, että langattomalle verkkosovittimelle löytyy toimivat ajurit. Laiteajuri on ohjelmiston osa, joka osaa kommunikoida laitteiden kanssa. Vaikka tietokone on tunnistanut langattoman verkkosovittimen, kunnolla toimivia ajureita ei välttämättä ole asennettu. On mahdollista, että langattomalle verkkosovittimelle löytyy toinen ajuri, joka toimii paremmin. Kokeile seuraavia vaihtoehtoja:

Tarkista, että langaton verkkokorttisi on tuettujen laitteiden listalla.

Most Linux distributions keep a list of wireless devices that they have support for. Sometimes, these lists provide extra information on how to get the drivers for certain adapters working properly. Go to the list for your distribution (for example, Ubuntu, Arch, Fedora or openSUSE) and see if your make and model of wireless adapter is listed. You may be able to use some of the information there to get your wireless drivers working.

Etsi rajoitettuja ajureita (binäärejä).

Many Linux distributions only come with device drivers which are free and open source. This is because they cannot distribute drivers which are proprietary, or closed-source. If the correct driver for your wireless adapter is only available in a non-free, or “binary-only” version, it may not be installed by default. If this is the case, look on the wireless adapter manufacturer’s website to see if they have any Linux drivers.

Some Linux distributions have a tool that can download restricted drivers for you. If your distribution has one of these, use it to see if it can find any wireless drivers for you.

Käytä sovittimen Windows-ajureita.

In general, you cannot use a device driver designed for one operating system (like Windows) on another operating system (like Linux). This is because they have different ways of handling devices. For wireless adapters, however, you can install a compatibility layer called NDISwrapper which lets you use some Windows wireless drivers on Linux. This is useful because wireless adapters almost always have Windows drivers available for them, whereas Linux drivers are sometimes not available. You can learn more about how to use NDISwrapper here. Note that not all wireless drivers can be used through NDISwrapper.

If none of these options work, you may want to try a different wireless adapter to see if you can get that working. USB wireless adapters are often quite cheap, and will plug into any computer. You should check that the adapter is compatible with your Linux distribution before buying it, though.