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Possibly in the morning, here's its spec from the website: Code: Wireless LAN Wireless N PCI Adapter TL-WN851N Email to a friend Printer Friendly Version Spotlight: * 300M Wireless ...
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  1. #11
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    Possibly in the morning, here's its spec from the website:



    Code:
      	 Wireless LAN 	 
      	Wireless N PCI Adapter 	 
      	
    
    TL-WN851N
    	  	
     Email to a friend         Printer Friendly Version
    	 
        Spotlight:
    
        * 300M Wireless transmission rate
        * MIMO technology with stronger signal penetration strength, wider wireless coverage, providing better performance and stability
        * CCA technology automatically avoids channel conflicts using its channel selection feature
        * Compatible with 11g and 11b equipment, Intel Centrino Compatibility tested
    
    	 
    				 
    	
    			
      	
    
    Software Specification
    Standards
    	
    IEEE 802.11n(draft 2.0), IEEE 802.11g, IEEE 802.11b, CSMA/CA with ACK
    Wireless Signal Rates With Automatic Fallback
    	
    11n: 270/243/216/162/108/81/54/27Mbps
            135/121.5/108/81/54/40.5/27/13.5Mbps
            130/117/104/78/52/39/26/13Mbps
            65/58.5/52/39/26/19.5/13/6.5Mbps
    11g: 54/48/36/24/18/12/9/6M(adaptive)
    11b: 11/5.5/2/1M(adaptive)
    Frequency Range
    	
    2.4-2.4835GHz
    Wireless Transmit Power
    	
    20dBm(MAX)
    Modulation Type
    	
    OFDM/CCK/16-QAM/64-QAM
    Receiver Sensitivity
    	
    270M: -68dBm@10% PER
    130M: -68dBm@10% PER
    108M: -68dBm@10% PER
    54M: -68dBm@10% PER
    11M: -85dBm@8% PER
    6M: -88dBm@10% PER
    1M: -90dBm@8% PER
    Security
    	
    64/128/152 bit WEP, WPA/WPA2, WPA-PSK/WPA2-PSK (TKIP/AES)
    Support Operating System
    	
    Windows 2000/XP/Vista
    
    Hardware Specification
    Interface
    	
    32-bit PCI
    Antenna Type
    	
    Omni Directional, Detachable
    Antenna Power
    	
    2 x 2dBi
    Certifications
    	
    CE, FCC
    Operating temperature
    	
    0C~40C (32℉~104℉)
    Storage temperature
    	
    -40C~70C (-40℉~158℉)
    Relative humidity
    	
    10% ~ 90%, non condensation
    Storage Humidity
    	
    5%~95% non-condensing
    Dimensions
    	
    5.2  4.8  0.9 in. (133  121  22 mm)
    I can't see any info about the chip there though.

    I've downloaded that backport, is stopped the system from freezing, so thanks for that.

    The wireless now connects when I boot the system up, but after a couple of minutes it loses the connection. Its strange, its showing the signal at full strength, but won't connect to it.

    I'll try the madwifi drivers tomorrow.

    Thanks a lot for your help, I'll update you tomorrow.

  2. #12
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    Thanks for the info, but I actually already check ed that site. The manufacturers almost never list the chipset that a wireless uses.

    If you try Madwifi, you should try the latest developmental release. Some say the madwifi-trunk-current may work.
    snapshots.madwifi.org

    For my EeePC, I had to use the madwifi-hal version in Red Hat and CentOS. But that is a different chipset than what you have.
    Please do not send Private Messages to me with requests for help. I will not reply.

  3. #13
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    Hi, I've installed the latest Madwifi trunk driver (29th april 09)

    - it does not seem to help, it does exactly the same as the ath9k ie. network manager detects my wireless signal at full strength, but seems unable to connect to it.


    Regarding my wireless card, I'm pretty sure its an atheros 5416 chipset.
    This is from the "Microbarn" website:

    Code:
    TP-Link TL-WN851N 802.11n Draft 2.0 Wireless PCI Network Adapter Card, 300Mbps   	
    TP-Link TL-WN851N 802.11n Draft 2.0 Wireless PCI Network Adapter Card, 300Mbps
    Part #: NWI-TLPCIN
     
    
    Availability: In Stock
    
    Shipping: Usually ships within 1 business day
    
    Discount Price: $22.99 for quantity of 25 or more
    Our Price:
    $23.99 
    
      Qty:
    
    Email to Friend
    
        * Description
    
    Related Items
    TP-Link TL-WN811N 802.11n Draft 2.0 Wireless PC-CARD (CardBus) Adapter, 300Mbps
    NWI-TLPCCARDN
    TP-Link TL-WN821N 802.11n Draft 2.0 Wireless USB 2.0 Adapter, 300Mbps
    NWI-TLUSBN
    TP-Link TL-WR841ND 802.11n Draft 2.0 300Mbps Wireless Router, 4-port 10/100 Switch, Firewall
    NWI-TLROUN
    
    The TP-Link TL-WN851N Wireless N PCI adapter allows you to easily connect your desktop computer to your wireless access point or wireless router. It is compatible with 802.11n networks for blazing fast speeds up to 300Mbps, and its backwards compatible with older 802.11g and 802.11b networks.  This adapter employs multiple intelligent antennas providing even better wireless performance, transmission rates, stability and coverage. At the same time, CCA technology automatically avoids channel conflicts using its channel selection feature. This product can simultaneously operate bandwidth intensive applications such as voice, and video.
    
    Specifications:
    
        * Interface: PCI
        * Wireless Standards: 802.11n draft 2.0, 802.11g, 802.11b
        * Transmit Speed: 300Mbps max
        * Transmit Power: 20 dBm max
        * Available Modes
              o Ad-Hoc Network
              o Infrastructure
        * Security
              o
                64 / 128 / 152 bit WEP
              o
                WPA / WPA2, WPA-PSK / WPA2-PSK (TKIP / AES)
        * Chipset: Atheros 5416
        * System Requirements: MS Windows 2000 / XP /Vista
        * Additional Information
              o Detachable 2 dBi reverse SMA connector Antennas
              o Internal Antenna
              o RoHS Compliant
              o Simple Configuration and monitoring
    
    
    Manufacturer: TP-Link - TL-WN851N
    Warranty: 1-year through Microbarn
    Any more ideas would be welcome, thanks.

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  5. #14
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    Is an ndiswrapper worth a try?

  6. #15
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    Even when you install the Madwifi driver, the ath9k driver will load by default. You have to blacklist the ath9k driver, and maybe even load the ath_pci driver manually.

    What is the output of lsmod?
    Last edited by waterhead; 05-04-2009 at 10:08 PM. Reason: grammar
    Please do not send Private Messages to me with requests for help. I will not reply.

  7. #16
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    Hi, sorry its taken me so long to reply. My internet company upgraded my router yesterday, I was hoping that would fix the problem but it hasn't.

    I've blacklisted ath9k:

    Code:
    nano /etc/modprobe.d/blacklist
    
    blacklist ath9k
    blacklist mac80211
    blacklist cfg80211
    I installed the latest madwifi trunk manually, and enabled it in hardware drivers, here are the relevant lsmod readings:

    Code:
    parport                49584  3 lp,ppdev,parport_pc
    nvidia               8123768  36 
    ath_pci               216384  0 
    wlan                  254752  6 wlan_tkip,wlan_ccmp,wlan_scan_sta,ath_rate_sample,ath_pci
    ath_hal               399968  3 ath_rate_sample,ath_pci
    forcedeth              68368  0 
    usbhid                 47040  0 
    floppy                 75816  0 
    fbcon                  49792  0 
    tileblit               11264  1 fbcon
    Is ath pci supposed to have a 0 next to it?

  8. #17
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    Is it worth blacklisting ath9k and installing ath5k?

    If so, what's the best way of doing this? I got the impression you weren't very keen on the compat wireless package.

  9. #18
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    You mean it doesn't work with this driver either?

    You asked about NDISwrapper, I guess you should try that. You will need a WinXP driver for your card, Vista drivers wont work. You also would have to remove/uninstall/blacklist the other divers.

    Ath5k doesn't appear to be the correct driver for your card. If you wanted to pursue getting the Linux ath9k driver to work, you may want to ask the developers for some help. They can be contacted through their mailing list. They also have an IRC channel.

    Support - Linux Wireless
    Please do not send Private Messages to me with requests for help. I will not reply.

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