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Wireless : No connections available shown in Windows 7

    Question

  • I have Windows 7 Home basic Version (OEM Dell Inspiron 14)
    For two or three days the wireless was working correctly.Then one day it suddenly got disconnected.
    Now I'm able access internet only through cable,which is working correctly and have nice connection speed.

    Contacted the ISP.They troubleshooted it,but the router wireless was working fine.

    The wireless signal icon in task always showing and X mark.Indication No connections available

    I'm using WPA -TKIP-Encryption Key wireless connection.

    The following steps I have already done.

    Wireless Switch is turned ON

    Trouble Shooting Network /Diagnosis -No results

    The device drivers are working correctly.With latest drivers installed.

    Unchecked -Allow computer to turn off this device to save power For both Wireless Adapter and Microsoft Virtual N/w Adapter Properties (Device Manager>Network Adapters >Properties)

    Unchecked-IPV6 in Adapter Settings in Netork Connection and Resource center.(Since my router only supports IPV4)

    The firewall is already turned off.

    The Enable Wireless settings in Network Connections is checked.





    Tuesday, March 16, 2010 7:32 AM

Answers

  • Hi,

     

    If the machine always can detect wireless signal in another network, we can conclude that the wireless settings are correct and the issue can occur if the Wireless router is not stable.

     

    At this stage, I suggest you upgrade the router firmware for a test. Also, please temporarily uninstall Dell Wireless utility and use the built-in Wireless utility to check the result.

     

    Thanks,

    Novak

     

    • Marked as answer by Novak Wu Thursday, March 25, 2010 2:06 AM
    • Marked as answer by Novak Wu Thursday, March 25, 2010 2:06 AM
    Friday, March 19, 2010 2:13 AM

All replies

  •  

    Hi,

     

    To eliminate the cause, I suggest you move the problematic machine to another Wireless network and verify whether it can access Wireless network. If it can access other Wireless network, this issue can occur by incorrect Wireless router settings or incorrect encryption.

     

    Otherwise, this issue can occur by incorrect system settings. At this stage, I suggest you perform the following steps to troubleshoot the issue.

     

    1. Assure the SSID and passphrase is the same for the router config page.

     

    2. Assure the WLAN AutoConfig service is started on the machine.

     

    If there is any error information, please capture and upload it.

     

    Thanks,

    Novak

    Wednesday, March 17, 2010 7:33 AM
  • anoopkg, are you using the dell wi-fi util or windows zero config or whatever they call it?

    the dell util crashes a good bit.

    get on the net with your cable and then go here and see if it shows any networks...
    the site will run a small java app in your browser

    http://tools.meraki.com/stumbler
    Wednesday, March 17, 2010 7:54 AM
  • Adding on the above advise, did you try changing the wireless channel on the router config page as well as what Bubbacguy mention? I'll suggest you to use either the default windows wireless utiltiy or the dell utility but not both

    Lastly is the wireless range between the router and your laptop miles away and is there any obstruction?
    Wednesday, March 17, 2010 9:26 AM
    Answerer
  • Thanks 4 d reply…

    Well, in the last two weeks I was able to connect to internet using Wi-Fi two times. But in all other cases it doesn’t show any wireless signal.

    And I contacted ISP .They said all the modem related stuff is working fine. But the computer is not detecting any signal.

    @Novak Wu Yeah...My system is detecting wireless signals, when tried on another network. I will check the Auto-Config settings in msconfig. No error messages so far.

    @Bubbapcguy The system showing that's its using dell wireless utility. About Windows zero config, I will verify it and tell .Also will check the site and update about it.

    @Daniel Ho
    Will check and confirm the modem settings again. Yeah...I tried accessing wireless keeping it the same room. Kept the modem at sufficient height. Also there were no accessories like cordless phones etc.

    Thursday, March 18, 2010 9:02 AM
  • Hi,

     

    If the machine always can detect wireless signal in another network, we can conclude that the wireless settings are correct and the issue can occur if the Wireless router is not stable.

     

    At this stage, I suggest you upgrade the router firmware for a test. Also, please temporarily uninstall Dell Wireless utility and use the built-in Wireless utility to check the result.

     

    Thanks,

    Novak

     

    • Marked as answer by Novak Wu Thursday, March 25, 2010 2:06 AM
    • Marked as answer by Novak Wu Thursday, March 25, 2010 2:06 AM
    Friday, March 19, 2010 2:13 AM