TechSpot

My MN-740s Have Failed Me

By EXCellR8
Mar 4, 2008
  1. So I've been using a wireless-g MN-740 (xbox) network adapter for about 4 years without ANY problems. It's been very dependable but for whatever reason has stopped working all of a sudden; I have no idea why.

    I thought that maybe the device was fried so I bought another one just like it... the new one doesn't work either. My linksys router is not picking up the signal nor does it detect the device's presence. Does anybody know how to fix this or should I just get a new router?

    I can get the new adapter to connect but nothing comes up in the browser (no Google). It says that it's connected (100.0mbps) but nothing happens. Any ideas? Thanks in advance.
     
  2. jobeard

    jobeard TS Ambassador Posts: 9,348   +622

    start with a COMPLETE list of all network hardware (brand+model) from the
    Modem to your system; include the NIC and wireless information.

    second;
    1. power OFF everything
    2. wait 30 seconds
    3. restart the Modem; wait until in is fully connected
    4. restart the router; wait 30 seconds
    5. now try to connect from the system to the router
    6. use run->cmd /k ipconfig /all
    7. copy the info and paste into your follow-up
     
  3. EXCellR8

    EXCellR8 The Conservative Topic Starter Posts: 1,835

    I have the mn-740 wireless ethernet adapter connected to the nForce network controller on my nf7-s 2.0 board. As far as the network goes, I have a wireless-b linksys router and a comcast cable modem. All of this hardware has worked before so I don't understand what would cause it to quit.

    Here's the ipconfig log:

    C:\Documents and Settings\Derek>ipconfig /all

    Windows IP Configuration

    Host Name . . . . . . . . . . . . : nf7s2
    Primary Dns Suffix . . . . . . . :
    Node Type . . . . . . . . . . . . : Unknown
    IP Routing Enabled. . . . . . . . : No
    WINS Proxy Enabled. . . . . . . . : No

    Ethernet adapter Ethernet Connection:

    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : NVIDIA nForce Networking Controller
    #2
    Physical Address. . . . . . . . . : 00-04-4B-80-80-03
    Dhcp Enabled. . . . . . . . . . . : No
    IP Address. . . . . . . . . . . . : 192.168.1.104
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Default Gateway . . . . . . . . . : 192.168.1.1
    DNS Servers . . . . . . . . . . . : 208.67.222.222
    208.67.220.220

    That's what I get when I enable the device and try to use it. The icon in the task bar shows it's connected but I can't get anywhere online.
     
  4. jobeard

    jobeard TS Ambassador Posts: 9,348   +622

    Looks great, but isn't this the wired NIC and not the wireless?

    run these using run->cmd

    ipconfig /flushdns
    net stop "DNS Client"
    net start "DNS Client"

    then try nslookup www.google.com
    you should get an ip-address list
    and ping www.google.com should work
     
  5. EXCellR8

    EXCellR8 The Conservative Topic Starter Posts: 1,835

    Sorry if I posted the wrong stuff... The wireless adapter (mn-740) is hooked up to my mobo's built-in network controller via ethernet cable. I named the connection "Ethernet" because I have a backup wireless connection as well -a slower USB connection. I guess the little xbox adapter is considered an ethernet device even though it is wireless. It's worked flawlessly before so I don't know what the problem is. I will run those commands and see what I can come up with. Thanks!
     
  6. jobeard

    jobeard TS Ambassador Posts: 9,348   +622

    You've got it right, else it could not have been configured.

    You're using Wireless Adapter and (apparently) mean wireless router.

    An Adapter is a device in or attached to the PC itself.

    It looks like you're DNS has been hijacked and those commands will cause it to
    resync with your ISP.
     
  7. EXCellR8

    EXCellR8 The Conservative Topic Starter Posts: 1,835

    Okay, I'm gonna try to explain my setup a little better, I am talking about the adapter. I have both an ethernet wireless adapter (hooked up to my computer) and a wireless router downstairs. Here is a picture of my adapter:

    [​IMG]

    Basically, instead of the adapter being connected to an xbox console it's hooked up, the same exact way, to the back of my computer. It is considered an ethernet device because it uses an ethernet cable connection. I hope that clarifies the situation a little. I haven't had a chance to run those commands yet but I will post where I am as soon as I have time. Thank you.
     
  8. EXCellR8

    EXCellR8 The Conservative Topic Starter Posts: 1,835

    Those commands didn't help... I tried twice. It looks like I cannot receive any info packets but I can transmit them. For some unknown reason, I don't think the router can communicate back to the adapter. I don't know what to do now, do you think I should just buy a new router??
     
  9. jobeard

    jobeard TS Ambassador Posts: 9,348   +622

    please be specific WHICH commands didn't work and what was the response from each?

    run these using run->cmd
    1. ipconfig /flushdns
    2. net stop "DNS Client"
    3. net start "DNS Client"
    4. nslookup www.google.com
    5. ping www.google.com
     
  10. EXCellR8

    EXCellR8 The Conservative Topic Starter Posts: 1,835

    Here is what I get when I try those commands with the wireless ethernet connection:

    C:\Documents and Settings\Derek>ipconfig /flushdns

    Windows IP Configuration

    Successfully flushed the DNS Resolver Cache.

    C:\Documents and Settings\Derek>net stop "DNS Client"

    The DNS Client service was stopped successfully.


    C:\Documents and Settings\Derek>net start "DNS Client"
    The DNS Client service is starting.
    The DNS Client service was started successfully.


    C:\Documents and Settings\Derek>nslookup www.google.com
    DNS request timed out.
    timeout was 2 seconds.
    *** Can't find server name for address 68.87.71.226: Timed out
    DNS request timed out.
    timeout was 2 seconds.
    *** Can't find server name for address 68.87.73.242: Timed out
    *** Default servers are not available
    Server: UnKnown
    Address: 68.87.71.226

    DNS request timed out.
    timeout was 2 seconds.
    DNS request timed out.
    timeout was 2 seconds.
    *** Request to UnKnown timed-out

    C:\Documents and Settings\Derek>ping www.google.com
    Ping request could not find host www.google.com. Please check the name and try again.

    Any ideas??
     
  11. jobeard

    jobeard TS Ambassador Posts: 9,348   +622

    First, all the widows commands worked as they should have.

    The ping and nslookup are failing, telling you that
    1- ether the DNS address is wrong OR
    2- your gateway address is wrong

    both ping and dns route packets thru your gateway address to the far end and
    there is no reply comming back.

    Previously your IPCONFIG reported the DNS addesses as 208.67.222.222 -- 208.67.220.220
    but the failure is coming from 68.87.73.242 which is cns.chelmsfdrdc2.ma.boston.comcast.net

    WHY THE CHANGE? 68.87.73.242 is resolver2.opendns.com
    you need to DROP your OpenDNS!
     
  12. EXCellR8

    EXCellR8 The Conservative Topic Starter Posts: 1,835

    Alright this is really starting to frustrate me now... I configured the connection to obtain an IP an DNS automatically (which has worked fine before) and all I get is "Limited or No Connectivity." I just don't get it. I have my alternate connection, the usb one, configured manually and it works perfect... too bad it's slow. Anyways, thanks for the help but I think I might just buy a new router, I'm sick of this one's crap.
     
  13. jobeard

    jobeard TS Ambassador Posts: 9,348   +622

    your configuration keeps flip-flopping and the basic issue is the DNS setting.

    if you can't run NSLOOKUP www.google.com then it's wrong.

    frankly, I doubt it's the hardware at all. Can you take your system to some other
    location and try connecting to a friends router?
     
  14. EXCellR8

    EXCellR8 The Conservative Topic Starter Posts: 1,835

    I think it's my hardware because the middle LED on the xbox adapter keeps blinking slowly when I power it up. It's supposed to be flickering like when there's activity or whatever. BOTH of them do this now for some reason, the new one and the old one. I even tried swapping cables and but nothing has happened. I think it's just broken or something. I googled the issue several times but found nothing. It's too bad really because the adapters are real fast and great for gaming. Oh well, that's life.
     
  15. jobeard

    jobeard TS Ambassador Posts: 9,348   +622

    I think you're right! that's not how it should appear.

    keep us posted on your progress.

    Jeff
     
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