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Thread: Realtek RTL8188CE

  1. #1
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    Realtek RTL8188CE

    so I've got Ubuntu fully installed and everything seems to be going quite nicely so far except for one thing. My wireless internet occasionally stops working. it still shows the "bars" in the top left saying that its connected to the router but when i open firefox i am unable to connect. this usually happens about every 20 minutes or so. the only way i have found to fix it (temporarily) is to disable network connection (or just wireless), then re enable them, or just to restart the computer. This problem is specific to linux. i have two hard drives i use, one with ubuntu and the other with windows 7 and fedora. this same error occurs on fedora but not windows 7. when the connection goes out, other computers on the network are still able to connect to the internet. i tried to fix the problem by adding "options iwlwifi 11n_disable=1" to /etc/modprobe.d/iwlwifi.conf

  2. #2
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    Re: wireless coneection issues

    Thread moved to Networking & Wireless.

    Welcome to the forums. You might have more luck here.

  3. #3
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    Re: wireless coneection issues

    I would just like to make a point that the problem is getting progressively worse to the point where I can't keep a connection long enough to open one page and click a link. Naturally, I am now posting from an iPod.
    Last edited by Marcus13345; February 3rd, 2013 at 05:40 AM. Reason: It's an iPod, there was bound to be an autocorrect issue.

  4. #4
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    Re: wireless coneection issues

    ~
    Last edited by ahallubuntu; July 3rd, 2013 at 02:30 AM.

  5. #5
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    Re: wireless coneection issues

    Code:
    marcus@Marcus-Ubuntu:~$ sudo lshw -C network
    [sudo] password for marcus: 
    PCI (sysfs)  
      *-network               
           description: Ethernet interface
           product: AR8152 v2.0 Fast Ethernet
           vendor: Atheros Communications Inc.
           physical id: 0
           bus info: pci@0000:01:00.0
           logical name: eth0
           version: c1
           serial: e8:9a:8f:84:69:bb
           size: 100Mbit/s
           capacity: 100Mbit/s
           width: 64 bits
           clock: 33MHz
           capabilities: pm msi pciexpress vpd bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd autonegotiation
           configuration: autonegotiation=on broadcast=yes driver=atl1c driverversion=1.0.1.0-NAPI duplex=full latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s
           resources: irq:43 memory:f0100000-f013ffff ioport:3000(size=128)
      *-network
           description: Wireless interface
           product: RTL8188CE 802.11b/g/n WiFi Adapter
           vendor: Realtek Semiconductor Co., Ltd.
           physical id: 0
           bus info: pci@0000:02:00.0
           logical name: wlan0
           version: 01
           serial: d0:df:9a:75:73:3b
           width: 64 bits
           clock: 33MHz
           capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
           configuration: broadcast=yes driver=rtl8192ce driverversion=3.5.0-23-generic firmware=N/A ip=10.0.0.14 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
           resources: irq:17 ioport:2000(size=256) memory:f0000000-f0003fff
    marcus@Marcus-Ubuntu:~$ 
    marcus@Marcus-Ubuntu:~$ iwconfig
    eth0      no wireless extensions.
    
    lo        no wireless extensions.
    
    wlan0     IEEE 802.11bgn  ESSID:"august"  
              Mode:Managed  Frequency:2.412 GHz  Access Point: 30:46:9A:03:C3:BB   
              Bit Rate=150 Mb/s   Tx-Power=20 dBm   
              Retry  long limit:7   RTS thr=2347 B   Fragment thr:off
              Power Management:off
              Link Quality=53/70  Signal level=-57 dBm  
              Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
              Tx excessive retries:0  Invalid misc:38   Missed beacon:0
    
    marcus@Marcus-Ubuntu:~$ lspci
    00:00.0 Host bridge: Advanced Micro Devices [AMD] Family 12h Processor Root Complex
    00:01.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI BeaverCreek [Radeon HD 6520G]
    00:01.1 Audio device: Advanced Micro Devices [AMD] nee ATI BeaverCreek HDMI Audio [Radeon HD 6500D and 6400G-6600G series]
    00:04.0 PCI bridge: Advanced Micro Devices [AMD] Family 12h Processor Root Port
    00:05.0 PCI bridge: Advanced Micro Devices [AMD] Family 12h Processor Root Port
    00:11.0 SATA controller: Advanced Micro Devices [AMD] Hudson SATA Controller [AHCI mode]
    00:12.0 USB controller: Advanced Micro Devices [AMD] Hudson USB OHCI Controller (rev 11)
    00:12.2 USB controller: Advanced Micro Devices [AMD] Hudson USB EHCI Controller (rev 11)
    00:13.0 USB controller: Advanced Micro Devices [AMD] Hudson USB OHCI Controller (rev 11)
    00:13.2 USB controller: Advanced Micro Devices [AMD] Hudson USB EHCI Controller (rev 11)
    00:14.0 SMBus: Advanced Micro Devices [AMD] Hudson SMBus Controller (rev 13)
    00:14.2 Audio device: Advanced Micro Devices [AMD] Hudson Azalia Controller (rev 01)
    00:14.3 ISA bridge: Advanced Micro Devices [AMD] Hudson LPC Bridge (rev 11)
    00:14.4 PCI bridge: Advanced Micro Devices [AMD] Hudson PCI Bridge (rev 40)
    00:14.5 USB controller: Advanced Micro Devices [AMD] Hudson USB OHCI Controller (rev 11)
    00:16.0 USB controller: Advanced Micro Devices [AMD] Hudson USB OHCI Controller (rev 11)
    00:16.2 USB controller: Advanced Micro Devices [AMD] Hudson USB EHCI Controller (rev 11)
    00:18.0 Host bridge: Advanced Micro Devices [AMD] Family 12h/14h Processor Function 0 (rev 43)
    00:18.1 Host bridge: Advanced Micro Devices [AMD] Family 12h/14h Processor Function 1
    00:18.2 Host bridge: Advanced Micro Devices [AMD] Family 12h/14h Processor Function 2
    00:18.3 Host bridge: Advanced Micro Devices [AMD] Family 12h/14h Processor Function 3
    00:18.4 Host bridge: Advanced Micro Devices [AMD] Family 12h/14h Processor Function 4
    00:18.5 Host bridge: Advanced Micro Devices [AMD] Family 12h/14h Processor Function 6
    00:18.6 Host bridge: Advanced Micro Devices [AMD] Family 12h/14h Processor Function 5
    00:18.7 Host bridge: Advanced Micro Devices [AMD] Family 12h/14h Processor Function 7
    01:00.0 Ethernet controller: Atheros Communications Inc. AR8152 v2.0 Fast Ethernet (rev c1)
    02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter (rev 01)
    marcus@Marcus-Ubuntu:~$ lsusb
    Bus 001 Device 003: ID 0480:b001 Toshiba America Info. Systems, Inc. 
    Bus 001 Device 004: ID 1a40:0101 Terminus Technology Inc. 4-Port HUB
    Bus 004 Device 002: ID 046d:0a38 Logitech, Inc. 
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 001 Device 005: ID 046d:c52f Logitech, Inc. Wireless Mouse M305
    Bus 001 Device 006: ID 046d:c31c Logitech, Inc. Keyboard K120 for Business
    Bus 001 Device 007: ID 046d:08af Logitech, Inc. QuickCam Easy/Cool
    marcus@Marcus-Ubuntu:~$

  6. #6
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    Jul 2005
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    Re: wireless coneection issues

    OK - first of all, in your original post you said you tried the fix "options iwlwifi 11n_disable=1" which is for Intel wireless cards. But you don't have an Intel wireless card; you have a Realtek card, an RTL8188CE. The fix you tried for the Intel card will have no effect on a Realtek card.

    You seem to be on Ubuntu 12.10. People have complained about issues with RTL8188CE in Ubuntu 12.04/12.10. The good news is: Realtek provides updated Linux drivers on their website:

    http://www.realtek.com.tw/downloads/

    The bad news: people have had trouble building the RTL8188CE driver in Ubuntu. They get a "make" error probably due to some missing packages. I have managed to build this driver but I have installed many development packages - can't tell you which ones would allow an error-free build. And I don't even have this card to test the driver on - I don't even know if the new driver works better but I suspect it does.

  7. #7
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    Feb 2013
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    Re: wireless coneection issues

    How would i go about trying to get this new driver to work on my computer? I've got the new driver's sources, though i'm unsure where to go from there.

  8. #8
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    Re: wireless coneection issues

    There should be step by step instructions downloaded as part of that driver. Go in the folder where you've extracted/saved it and look for 'ReadMe' file.

  9. #9
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    Re: wireless coneection issues

    I read the readme file and proceeded to do what it asked of me. it all went smoothly until it told me that i was missing some files. i did a quick google search of the directory it was trying to access and found the package to get for it. after install said package, i then went back and retried "make install". And again, i got the same error, claiming there is no such directory /lib/modules/3.5.0-23-generic/build

    Code:
    marcus@Marcus-Ubuntu:~/Desktop/RTL$ ls
    base.c                              core.c    pci.c   release_note
    base.h                              core.h    pci.h   rtl8188ee
    cam.c                               debug.c   ps.c    rtl8192ce
    cam.h                               debug.h   ps.h    rtl8192de
    compat                              efuse.c   rc.c    rtl8192se
    compat.h                            efuse.h   rc.h    rtl8723e
    compat-wireless-3.0-2-mesh.tar.bz2  firmware  readme  stats.c
    compat-wireless-3.0-2.tar.bz2       Kconfig   regd.c  stats.h
    compat-wireless-3.2.5-1.tar.bz2     Makefile  regd.h  wifi.h
    marcus@Marcus-Ubuntu:~/Desktop/RTL$ make
    make -C /lib/modules/3.5.0-23-generic/build M=/home/marcus/Desktop/RTL modules
    make: *** /lib/modules/3.5.0-23-generic/build: No such file or directory.  Stop.
    make: *** [all] Error 2
    marcus@Marcus-Ubuntu:~/Desktop/RTL$

  10. #10
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    Re: wireless coneection issues

    sudo make
    sudo make install

    Make sure you have cd 'ed to the correct directory. It will be a directory inside the extracted directory, NOT just the extracted directory.
    Last edited by Bucky Ball; February 3rd, 2013 at 08:40 AM.

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