Question

1

slow wifi connection on ubuntu 13.04 with rtl8723ae realtek wireless driver

rated 0 times [ 1] [ 0] / answers: 1 / hits: 4257 / 2 Years ago, thu, january 6, 2022, 2:43:37

so i have installed ubuntu four days ago on my toshiba SATELLITE-C855-2CF and everything is going well, but i noticed that my wifi connection is slow and when i did a speed test online i found that i have only 0.9 Mbps and when i did the speed test on windows i have 4Mbps so can someone tell me how can i fix this problem ? if don't find any solution for this problem i'll have to go back to windows and leave ubuntu.

$ iwconfig

eth0      no wireless extensions.



lo        no wireless extensions.



wlan0     IEEE 802.11bgn  ESSID:"SAGEM"  

      Mode:Managed  Frequency:2.437 GHz  Access Point: 4C:17:EB:3E:C4:0C   

      Bit Rate=18 Mb/s   Tx-Power=20 dBm   

      Retry  long limit:7   RTS thr=2347 B   Fragment thr:off

      Power Management:off

      Link Quality=34/70  Signal level=-76 dBm  

      Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0

      Tx excessive retries:0  Invalid misc:6967   Missed beacon:0



$ lsmod | grep rtl

rtl8723ae              86459  0 

rtlwifi                79673  1 rtl8723ae

mac80211              606457  1 rtlwifi

cfg80211              510937  2 mac80211,rtlwifi





$ lspci | grep RTL

02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8723AE PCIe Wireless Network Adapter

03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 05)



$ sudo lshw -class network

  *-network               

   description: Wireless interface

   product: RTL8723AE PCIe Wireless Network Adapter

   vendor: Realtek Semiconductor Co., Ltd.

   physical id: 0

   bus info: pci@0000:02:00.0

   logical name: wlan0

   version: 00

   serial: 2c:d0:5a:3e:ee:bb

   width: 64 bits

   clock: 33MHz

   capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless

   configuration: broadcast=yes driver=rtl8723ae driverversion=3.8.0-27-generic firmware=N/A ip=192.168.1.6 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn

   resources: irq:17 ioport:3000(size=256) memory:c2400000-c2403fff

 *-network

   description: Ethernet interface

   product: RTL8101E/RTL8102E PCI Express Fast Ethernet controller

   vendor: Realtek Semiconductor Co., Ltd.

   physical id: 0

   bus info: pci@0000:03:00.0

   logical name: eth0

   version: 05

   serial: 70:54:d2:d6:d0:2b

   size: 10Mbit/s

   capacity: 100Mbit/s

   width: 64 bits

   clock: 33MHz

   capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation

   configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl_nic/rtl8105e-1.fw latency=0 link=no multicast=yes port=MII speed=10Mbit/s

   resources: irq:41 ioport:2000(size=256) memory:c0004000-c0004fff memory:c0000000-c0003fff

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calronze

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answered 2 Years ago lotceptin · Accepted Answer

I believe that there are conflicts with the driver, so you can try installing the Official drivers for the WLAN NIC.

This answer should help you [but, a newer version of the driver can be downladed from here Other steps remain the same.]. I'm pasting the answer below:

Realtek is making the official Linux driver available unofficially (via Dropbox)

Support for the RTL8273AE-BT has been added by Realtek in the 92-series driver, version 0006.0514.2012. For unknown reasons, neither the Windows nor Linux drivers are available on their website (yet). But Realtek tech support has been providing a Dropbox link with the source code/firmware tarball which numerous users have reported as working.

Where do I get it? Is it safe?

The driver can be downloaded via this Dropbox link.

I can confirm that this file is what it claims to be, with this content listing, provided it has the following MD5 or SHA1 hashes: (which you can verify with md5sum or sha1sum)
```
MD5: fd10e9a347c6447f649324d6bdab53de

SHA1: 1ccd6ae73878d8bf65bd7c0384e333b121606230
```

How do I build and install the driver on Ubuntu?

Open a terminal with Ctrl+Alt+T.

You'll need to install these packages first to build the driver:

sudo apt-get install build-essential linux-headers-generic linux-headers-`uname -r`

Paste the below line to download and extract the driver archive in one single step:

wget -O- http://dl.dropbox.com/u/57056576/DRIVERS/REALTEK/rtl_92ce_92se_92de_8723ae_linux_mac80211_0006.0514.2012.tar.gz | tar -xz

Change to the extracted driver's directory, build and install the driver:



cd rtl_92ce_92se_92de_8723ae_linux_mac80211_0006.0514.2012

make

sudo make install

Test the driver by loading it (this is a one-time step; after you reboot once, the driver should automatically load on every boot):
```
sudo modprobe rtl8723e
```