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Can't connect to net despite wireless adapter connecting to router's wireless network

Discussion in 'Networking' started by mb667584, Feb 6, 2007.

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  1. mb667584

    mb667584 Thread Starter

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    Messages:
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    Hi everyone: I’m having an extremely frustrating problem connecting to my Netgear DG384G v3 wireless router in my flat.

    In short:

    Ever since I reformatted my hard drive and reinstalled Windows XP Pro, internet browsers do not detect a connection to the internet despite a wireless connection being detected in the network connections (and the icon in the system tray) when my wireless adapter is plugged into my PC. Connection problems only occurred after the reformat, another PC in my flat connects wirelessly to our router with no problems (before, during & after the time I reformatted; I’m posting this using his PC) and the router config settings have definitely not been changed in any way so its not a router problem. It appears that the wireless adapter is able to detect a signal from the router but the router is not sending information to the adapter (I can’t even connect to the router setup IP address 192.168.0.1)?

    More detailed:

    1) I wiped the PC’s harddrive then reinstalled Windows XP Pro – I thought the recovery disk would have drivers with it (like others I’d used) but it didn’t so I had to manually find nVidia chipset & 3com Ethernet controller drivers and SP1 (for USB 2.0 functionality), download them on another PC and transfer and install them on mine. I got SP2, this didn’t change anything, I changed back to SP1, still no change to connectivity.

    2) When my Netgear WG111 v2 wireless adapter is plugged into a USB port, Windows recognises it as a device connected to the PC.

    3) My Netgear DG384G v3 router is working normally – the power light is on, the internet light is on and the wireless light is on, all are green, the internet light blinks intermittently as normal, the other two are solid.

    4) When the wireless adapter is plugged into the PC, wireless networks are detected and I can detect and connect to my Netgear router using the same WEP key and SSID as before (set at the time of router setup and not changed since). Bubble comes up with “Wireless Network Connection 2 (NETGEAR), Speed: 54Mbps, Signal Strength: Very Good”

    5) When a browser is opened and set to any website the DNS error screen (“The page cannot be displayed, The page you are looking for is currently unavailable” etc) in IE, “Server not found, Firefox can't find the server at www.google.co.uk” in Firefox

    6) When opening Internet Explorer, the bar at the bottom of the window displays “Detecting proxy settings” for a few seconds before the DNS error comes up.

    7) The router settings cannot be opened via a browser, either by using the router setup CD or by typing http://192.168.0.1 into the address bar. The same error msg is displayed in IE, Firefox displays “Unable to connect, Firefox can't establish a connection to the server at 192.168.0.1”

    8) I can connect to the router setting page in the above way using my flatmate’s wireless connection to the same router.

    9) Opening up the properties of the wireless connection shows that data packets are sent but not received, e.g. after leaving the wireless connection on for 4 hours – 15000 packets sent, 0 packets received

    10) I tried bridging the wireless connection with the 1394 Net Adapter connection in “Network Connections/LAN or High Speed Internet”, this had no effect. reversing this also had no effect.

    11) All settings (IP etc) were set to be automatically provided, no effect.

    12) I looked at my flatmate’s connection settings (IP address, subnet mask, DHCP server etc) and manually specified as many of them as I could on my connection, no effect.

    13) I used my flatmate’s connection to go into the router settings and manually specify my PC’s Physical address (MAC no.) as being always allowed to connect, no effect.

    14) I effectively turned off the router’s firewall (by setting it to allow incoming connections on all ports), no effect. Changed it back, no effect.(also, no firewalls installed on PC).

    15) I removed the WEP, no effect (not likely to be the cause anyway, since I can connect to router using the WEP key as described).

    16) All other functionality of the PC is 100% normal; no devices are listed as not having drivers installed in device manager. PC is running SP1, ISP is AOL though I have been unable to find the AOL CD so I’ve not tried reconfiguring with that (but I didn’t use the AOL CD to start-up in the first place when the internet worked before the reformat)

    The fact that no data is being received in the connection properties thing seems to suggest that the router is not recognising the PC or some such thing that is preventing the PC access the internet connection despite detecting and apparently connecting to the router’s wireless signal. Perhaps some networking device is not working / hasn’t had software installed for it?

    I would appreciate it if anyone could help, if I’ve left out any information you might need to solve the problem them please let me know. I’d also like lists of any possible things it might be (e.g. suggesting to check the firewall even though I’ve said I’ve checked it and it didn’t have an effect) just incase I’ve missed something on one of my checks that someone knows to have caused a similar problem from experience.

    I’ve not yet tried wiring the router into the back of my PC since that would involve temporarily moving the PC into the living room and since the problem doesn’t appear to be with the router and it’s the wireless connection that’s giving problems I don’t see what wiring it up would achieve, even if it could connect to the net that way. Of course if I’m wrong, please let me know & why connecting to the router via an Ethernet cable could help my wireless connectivity when the router is setup and working already.



    IPCONFIG/ALL results:

    Microsoft Windows XP [Version 5.1.2600]
    (C) Copyright 1985-2001 Microsoft Corp.

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

    Windows IP Configuration

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

    Ethernet adapter Local Area Connection 2:

    Media State . . . . . . . . . . . : Media disconnected
    Description . . . . . . . . . . . : NVIDIA nForce Networking Controller
    Physical Address. . . . . . . . . : 00-0C-6E-BB-08-B2

    Ethernet adapter Local Area Connection 3:

    Media State . . . . . . . . . . . : Media disconnected
    Description . . . . . . . . . . . : 3Com 3C920B-EMB Integrated Fast Ethernet Controller
    Physical Address. . . . . . . . . : 00-26-54-12-B7-8E

    Ethernet adapter Wireless Network Connection 2:

    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : NETGEAR WG111v2 54Mbps Wireless USB 2.0 Adapter
    Physical Address. . . . . . . . . : 00-0F-B5-B8-54-DE
    Dhcp Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes
    Autoconfiguration IP Address. . . : 169.254.83.247
    Subnet Mask . . . . . . . . . . . : 255.255.0.0
    Default Gateway . . . . . . . . . :

    I’m all ears.

    Kind Regards,
    Michael Barker
     
  2. Daredeval756

    Daredeval756

    Joined:
    Dec 11, 2006
    Messages:
    236
    Run ipconfig /release then your ip's will all be 0 the run ipconfig /renew , also disable all of your connections except for the one your internet is coming in on.

    Hope That Helps,
    //Daredeval756
     
  3. cgesicki

    cgesicki

    Joined:
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    Messages:
    968
    try setting the router to “802.11g mode” ONLY and make sure your wireless adapter is in "infrastructure" mode and not "adhoc"
     
  4. TerryNet

    TerryNet Moderator

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    First Name:
    Terry
    Do you have a 3rd party firewall blocking all access?
     
  5. mb667584

    mb667584 Thread Starter

    Joined:
    Feb 6, 2007
    Messages:
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    I'll try the above two suggestions when I get home, as mentioned (pt 14) there are no 3rd party firewalls, disabling the router's firewall had no effect.

    Also, when I manually specified all the connection settings (IP address etc) to be the same as on my flatemates PC which can connect to the router (pt 12) this had no effect, I think the problem is related to the PC not being able to communicate with the router past picking up its wireless signal since no data packets are listed as being received and the router is not providing the PC with an IP address, but I'll try the IP changes as suggested and get back to you.
     
  6. mb667584

    mb667584 Thread Starter

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    Another thought:

    If I manually specify the IP etc settings to ones that are correct and thus should allow the PC to connect to the net wirelessly (ie the effect of having the correct settings automatically provided to it by the router) but it still doesn't connect then what does this mean?

    Is there a software or hardware component/setting that would somehow stop the router recognising the PC's presence or stop 2-way communication between the PC and router even tho the PC can detect the router's presence with the wireless adapter and connect to its wireless network using the WEP key?

    I have a feeling the problem lies in this area, also maybe to do with the fact that due to the reformat the PC effectivly has the earliest version of XP-Pro running with SP1 installed & no other windows updates from between XP's 1st release and SP1's release - was there a later Windows update between XP & early SP1 and SP2 that might have adressed something like this? Before the reformat the connection worked fine on a system that had all the updates post-SP1 but not SP2 or any of the post SP2 ones (due to a registry problem stopping SP2's install, the reason I eventually went for the reformat).

    Also, it's in ifrastructure mode. I'll try playing around with the 802.11 settings again but this didn't have an effect last time I tried.
     
  7. mb667584

    mb667584 Thread Starter

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    Messages:
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    I performed an IPCONFIG/ALL, it didn't work:

    Microsoft Windows XP [Version 5.1.2600]
    (C) Copyright 1985-2001 Microsoft Corp.

    C:\Documents and Settings\Dex>ipconfig/release

    Windows IP Configuration

    Ethernet adapter Wireless Network Connection 2:

    Connection-specific DNS Suffix . :
    Autoconfiguration IP Address. . . : 169.254.83.247
    Subnet Mask . . . . . . . . . . . : 255.255.0.0
    Default Gateway . . . . . . . . . :


    C:\Documents and Settings\Dex>ipconfig/renew

    Windows IP Configuration

    An error occurred while renewing interface Wireless Network Connection 2: unable to contact your DHCP server. Request has timed out.


    I’m guessing this gives some indication of the root of the problem? I should probably of noted that when I was manually specifying the IP address etc I couldn’t find a menu for specifying the address of the DHCP server, tho the connection was set to be DHCP enabled. The DHCP server on my flatmate’s connection to the router is 192.168.0.1 (the router’s IP address), that address along with the DNS etc are all provided automatically on his PC.

    If a possible solution to this involves modifying the DHCP address or settings could you please explicitly say what menus these settings are changed in because I couldn’t find any DHCP setting menus when I tried to manually specify all of the addresses, I have to access the internet on other computers so this just saves time because I can only check the forums a few times a day.

    What could be the solution to the router not propviding my wirelss adapter with an IP address when the same router works fine wirelessly with my flatmate's PC and before the reformat worked fine with my PC with the same adapter, same dirvers, same firmware.

    Thanks again.
     
  8. TerryNet

    TerryNet Moderator

    Joined:
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    Terry
    If you have SSID disabled, enable it. Disable encryption, connect your computer, re-enable encryption, reconnect your computer.

    Suggest you use WPA-PSK if your devices support it; if using WEP again it's better to use hex key because sometimes devices translate passcodes differently.

    If somewhere in all your points you have done this I'm sorry for wasting your time; I'm just not about to carefully read all that stuff to find the pertinent facts.
     
  9. cgesicki

    cgesicki

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    I dont know if your usb port is 2.0 but it states here http://kbserver.netgear.com/release_notes/D102948.asp under "Features and Enhancements" When the Adatper is plugged into a USB 1.0/1.1 port, it will connect to a router operating in "802.11g only" mode

    And also if your pc has more than one network card try disabling the one you are not using.

    also make sure the DHCP client service is running on your pc
     
  10. mb667584

    mb667584 Thread Starter

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    How do I make sure the DHCP client service is running? When I was manually specifying the IP addresses etc before I couldn't find any menus/controls relating to DHCP.

    If this is a feature of Windows, is it possible that because my platform is (since the reformat) essentially a very early copy of XP-Pro that ONLY has SP1 installed on it and no other updates whatsoever that this DHCP service could either not be installed or not functioning in some way? If this is the case any ideas on how to find the relevant files for downloading, ie from Microsoft or just go for googling them.

    Thanks
     
  11. cgesicki

    cgesicki

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    go to Start>Run type services.msc then look for DHCP Client and make sure its started and set to automatic
     
  12. TerryNet

    TerryNet Moderator

    Joined:
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    SP2 is certainly advisable because of all the wireless networking fixes and improvements. But I think you should still be able to get basic communication going.
     
  13. acug

    acug

    Joined:
    Feb 16, 2007
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    I have exactly the same problem. The tipoff is "Autoconfiguration IP Address. . . : 169.254.83.247"

    This is a reserved IP that essentially means that your wireless adapter is not able to get a dynamic IP address from a DHCP server.

    In my case, (and I think yours) the IP addr should be handed out by the router. I was able to verify correct operation by bypassing the router and connecting the WAP directly to the DSL modem.

    The mystery is that I have two other wifi PCs that work perfectly on the same network, and they are both configured the same as the one that doesn't work.

    Still hunting...
     
  14. cgesicki

    cgesicki

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  15. acug

    acug

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    Yes, winsockfix had no effect; also resetting the TCP/IP stack was negative. One correction to the above -- bypassing the router in fact did NOT work -- I think I had gotten an IP addr by connecting the hardwire LAN.
     
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