Repair and reinstall Wifi connections

Icono Wifi
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In this tutorial, you teach repair and reinstall Wifi connections. If you have trouble connecting your laptop or PC via WifiWe offer some drivers and tricks. That depends on the model and the available steps. In addition, any doubts we do it in steps our forum.

Overall, the Linux kernel It contains several drivers, the main ones are already pre-installed for ease of use and others can be installed in the repositories. In addition, the community collaborates in its development, for the modified version, adding more compatibility for future updates. If you want to participate in its development for the Linux kernel, visit the official mailing list.

This page is part of the page Frequent problems Deepin. Which encourages selection to new users find possible scenarios that were previously reported and resolved. Please review this selection to cover other aspects of this operating system.

Before performing

It is clear that the writers of this guide are not responsible for damages in the event of an incident because they are based on experiences lived by the collaborators. Especially in the specific drivers not offered by Linux or the official Deepin repositories. Before proceeding, check that the following drawbacks do not exist:

In the vast majority of cases, the Linux kernel has included the brand in the compatible list. It occurs in recent non-LTS versions. If you are willing to update, try doing it manually.

Sometimes, problems may be external signal. Problems with the operator, storm situation, interference, etc. We have This home guide to identify the type of problem.

Make sure the software is not interrupting the connection. Since the web browser may not work due to the network blocker or a firewall; for example, Gufw prevents network access for all programs.

Information about the software to install

  • Many of the cases presented on the page require the installation of a package, a script or modifying code.
  • There are universal packages that control various models (due to their constant updating). For example, having firmware-misc-nonfree most devices would work without problems (although they are not free). Others are specific.
  • If you want to make more intuitive can do it from Synaptic, Look for the package and install one.
  • For the most experienced we suggest checking the System Log (syslog). They are frequently found in /var/log/syslog.

Procedures Wifi

Tp link

  • The adapters are compatible with Linux. For more information visit the FAQ.
  • To see the driver source code for the TL-WDN5200 turn to github.
  • TL-WN8200ND: Magnus Bergmark.
  • Note: You must use the tool to compile with apt install build-essential dkmsThen add the model sudo nano etc/modules and install the tablet.

Broadcom

  • From the terminal performs a search with apt-cache search broadcom. Once you are chosen to install the package, execute enough apt install [nombre del paquete].
    • broadcom-sta-common (Chipset 4311/4312/4313/4321/4322)
    • firmware-b43-installer (For B43XX series)
    • firmware-b43legacy-installer (Specific for BCM4306 series and 802.11 only)
    • firmware-bnx2 Y firmware-bnx2x (For NetXtreme)
    • firmware-brcm80211 (Related to 802.11 and bcm43xx or bcm43xxx)
  • Note: Some drivers installed conflict with the device. If so, uninstalls sudo apt remove [nombre del paquete]:
    • bcmwl-kernel-source (Manual installer) if you have problems installing firmware-b43-installer Y broadcom-sta-common (Automatic installer)
    • broadcom-sta-dkms (Manual installation) in replacement broadcom-sta-common (Automatic setup)

Qualcomm Atheros

  • If the connection is very slow:
    • sudo apt remove —purge firmware-atheros
    • sudo apt remove —purge wireless-tools
  • If the chip fails, you must enable nohwcrypt Y btcoex_enabke:
    • From the terminal: sudo nano /etc/modprobe.d/ath9k.conf
    • Add: options ath9k nohwcrypt=1
    • On the other line: options ath9k btcoex_enable=1

Intel

  • Intel Wimax for:
    • Check if you have firmware-intelwimax installed.
  • For most Intel devices (Adapter, 6000 series, 7000 series ...):
  • To know the repository and its source code, visit this page.

Acer

  • If you find conflicts with acer_wmi, try to blacklist with the following order.
    • In the terminal: sudo tee /etc/modprobe.d/blacklist-acer-wmi.conf <<< "blacklist acer_wmi"

Texas Instruments

Backward compatibility with Network Driver Interface Specification

Ndiswrapper is an encapsulator originally designed to run Network Driver Interface Specification devices by the Windows XP API. To install perform from the sudo terminal apt install ndiswrapper ndiswrapper-dkms ndisgtk. To manage, the Ndisgtk program is used. It is recommended to make a backup since it could modify the Linux kernel.

None of the models listed?

If any of the models appears in the list, we are in bad luck. In either case you can ask for help in the forum. If you have more experience you can know the drivers available on this wiki or on Wikipedia.

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try Wifi

If you want to test the Internet connection with the model in question, you have the following commands in the terminal:

  • BIOS information: sudo dmidecode
  • Network settings: sudo ifconfig (No sweat, only shows information)
  • Network information: sudo lshw -c network
  • Check network status: watch -n 1 ethtool eth0
  • modprobe module to load the core: sudo modprobe module
  • More in Tools for wireless networks

In case you need some patch

If you found a patch to fix the connectivity problem, reports in Comments Deepin. Be brief, in English, with the model of the device.

further reading

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