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Solved: Unable to connect to internet by a wireless network

Discussion in 'Networking' started by stompp, Jun 1, 2011.

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  1. stompp

    stompp Thread Starter

    Joined:
    Jun 1, 2011
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    Hello! I have a problem. It is a period of time, of some weeks, since my laptop is unable to access the internet. It succesfully connects to a wireless network, I can see the name of it, but after connecting my laptop is displaying "Unidentified network", below the network name. Also, I don't have Internet access. In the task bar, my wireless icon has an exclamation mark, in a yellow triangle. I have tried to connect with another laptop at a wireless network my laptop can't connect and it worked for the other laptop. So, the problem is with my laptop, not with the network. Can you help me?

    My laptop is Acer Aspire 5738Z. My network wireless adaptors are Atheros AR5B91 Wireless Network Adapter and Microsoft Virtual WiFi Miniport Adapter. They work properly.
    OS Version: Microsoft Windows 7 Ultimate , Service Pack 1, 32 bit
    Processor: Pentium(R) Dual-Core CPU T4200 @ 2.00GHz, x64 Family 6 Model 23 Stepping 10
    Processor Count: 2
    RAM: 1976 Mb
    Graphics Card: Mobile Intel(R) 4 Series Express Chipset Family, 796 Mb
    Hard Drives: C: Total - 60000 MB, Free - 20683 MB; D: Total - 178472 MB, Free - 109621 MB;
    Motherboard: Acer , JV50 , Rev , LXPAR0C023913023F72000
    Antivirus: Kaspersky Internet Security, Updated and Enabled
     
  2. pedroguy

    pedroguy

    Joined:
    Jan 28, 2001
    Messages:
    6,523
    Welcome to TSG:
    May we see:
    Start, Run, CMD, OK to open a command prompt:
    (For Vista or 7 type CMD in the Search box after Start)



    In the command prompt window that opens, type the following command:

    Note that there is a space before the /ALL, but there is NOT a space after the / in the following command.

    IPCONFIG /ALL

    Right click in the command window and choose Select All, then hit Enter to copy the contents to the clipboard.
    Paste the results in a message here.

    If you are on a machine with no network connection, use a floppy, USB disk, or a CD-RW disk to transfer a text file with the information to allow pasting it here.

    And:
    Let’s take a look at the status of the network adapters

    Device manager:

    Hold the Windows key and press R, then type devmgmt.msc

    Please respond to all the following steps.
    1. Under Network adapters, please tell me all the devices listed.
    2. Are there any devices under Network adapters that have a red x displayed?
    3. Also, are there any devices anywhere in the Device Manager display with yellow ? or ! displayed?
    4. should be enabled and working properly.
    5. If error code,what is it ?

    It would be best if you could post a screen shot of Device Manager with the Network adapters and Other devices sections expanded.

    To post a screen shot of the active window, hold the Alt key and press the PrtScn key. Open the Windows PAINT application and Paste the screen shot. You can then use PAINT to trim to suit, and save it as a JPG format file. To upload it to the forum, open the full reply window and use the Manage Attachments button to upload it here.

    Any hardware/software changes about the time wireless went away?
    If you click on the wireless icon,any error status or message ?Try both a left and right click
     
  3. stompp

    stompp Thread Starter

    Joined:
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    Messages:
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    Thank you very much for your help. On my laptop I'm currently working on the Internet with the Ethernet cable plugged and wifi deactivated. With the Ethernet cable it works fine, I have Internet access. Should I unplug the cable, activate wifi and connect to the home network, with which I have these problems, during these steps?
     
  4. pedroguy

    pedroguy

    Joined:
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    Messages:
    6,523
    Let's have an ipconfig /all with the ethernet cable connected.and wifi enabled.
     
  5. Jexy

    Jexy

    Joined:
    Jun 1, 2011
    Messages:
    1
    My laptop is DELL Inspiron N5010 which is not able to connect to WIFI networks,

     
  6. pedroguy

    pedroguy

    Joined:
    Jan 28, 2001
    Messages:
    6,523
    Jexy.Please start your own thread.Use the report button to do request your post to be moved.
     
  7. mucker2010

    mucker2010

    Joined:
    May 24, 2011
    Messages:
    505
    Sounds like your getting a 169. address. The Ipconfig will tell us that. It is very likely that your wireless card doens't support the encryption your access point is using, do you know what it is?

    If you don't know what I am on about look on the back of the router and you a a WPA or WEP key that you have to type into the laptop when you connect to your wireless network. It will say WPA or WEP or something like that. Right down all of what it says and post here.
     
  8. stompp

    stompp Thread Starter

    Joined:
    Jun 1, 2011
    Messages:
    14
    Microsoft Windows [Version 6.1.7601]
    Copyright (c) 2009 Microsoft Corporation. All rights reserved.

    C:\Users\Victor>IPCONFIG /ALL

    Windows IP Configuration

    Host Name . . . . . . . . . . . . : Victor-Laptop
    Primary Dns Suffix . . . . . . . :
    Node Type . . . . . . . . . . . . : Hybrid
    IP Routing Enabled. . . . . . . . : No
    WINS Proxy Enabled. . . . . . . . : No

    Wireless LAN adapter Wireless Network Connection 5:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft Virtual WiFi Miniport Adapter #
    4
    Physical Address. . . . . . . . . : 06-24-2C-0E-1D-7D
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes

    Wireless LAN adapter Wireless Network Connection:

    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Atheros AR5B91 Wireless Network Adapter
    Physical Address. . . . . . . . . : 00-24-2C-0E-1D-7D
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes
    Autoconfiguration IPv4 Address. . : 169.254.223.138(Preferred)
    Subnet Mask . . . . . . . . . . . : 255.255.0.0
    Default Gateway . . . . . . . . . :
    DNS Servers . . . . . . . . . . . : 193.231.242.2
    NetBIOS over Tcpip. . . . . . . . : Enabled

    Ethernet adapter Local Area Connection:

    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Broadcom NetLink (TM) Gigabit Ethernet
    Physical Address. . . . . . . . . : 00-1D-72-FB-01-F7
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes
    IPv4 Address. . . . . . . . . . . : 192.168.1.3(Preferred)
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Lease Obtained. . . . . . . . . . : 3 iunie 2011 08:01:12
    Lease Expires . . . . . . . . . . : 4 iunie 2011 08:01:12
    Default Gateway . . . . . . . . . : 192.168.1.1
    DHCP Server . . . . . . . . . . . : 192.168.1.1
    DNS Servers . . . . . . . . . . . : 192.168.1.1
    192.168.1.1
    NetBIOS over Tcpip. . . . . . . . : Enabled

    Tunnel adapter Local Area Connection* 2:

    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes
    IPv6 Address. . . . . . . . . . . : 2001:0:4137:9e76:c0b:1c91:929b:e8a(Prefer
    red)
    Link-local IPv6 Address . . . . . : fe80::c0b:1c91:929b:e8a%77(Preferred)
    Default Gateway . . . . . . . . . : ::
    NetBIOS over Tcpip. . . . . . . . : Disabled

    Tunnel adapter isatap.{E36834C4-416F-458D-982B-18C49CDAAE4E}:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft ISATAP Adapter #5
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter isatap.{71AA5146-3938-4B22-8A25-FC6CCC163636}:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft ISATAP Adapter #6
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter isatap.{A1BDF70C-DF29-45A1-835F-E5875FE9FB85}:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft ISATAP Adapter #7
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter isatap.{24F32D39-F474-4CD9-99E0-40C0C3A1DD21}:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft ISATAP Adapter
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter Local Area Connection* 19:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft 6to4 Adapter #10
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter Local Area Connection* 208:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    C:\Users\Victor>

    done. with both cable plugged and wifi connected to network.
     
  9. stompp

    stompp Thread Starter

    Joined:
    Jun 1, 2011
    Messages:
    14
    One thing: Recently I have bought a router (and Internet service) from my telephone company and which is plugged to the telephone line. The router is configured to automatically assign my IPs (DHCP enabled), both cable and wireless. And I can't connect via wireless, just by cable.
     
  10. stompp

    stompp Thread Starter

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    And on the back of the router it says that it supports WEP, WPA and WPA2 encryptions.
     
  11. mucker2010

    mucker2010

    Joined:
    May 24, 2011
    Messages:
    505
    They are what are supported. But what does it say it is using?

    If you don't know do you have any other PC's that connect wirelessly succesfully? As you may be able to check these settings and it will tell us what type of encryption it is using.
     
  12. stompp

    stompp Thread Starter

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    Messages:
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    Oh, I finally resolved the problem. I reseted the router and created again the wireless network, ensuring that the encryption settings on the laptop and on the router match. It works now. Thanks anyway! ^^
     
  13. pedroguy

    pedroguy

    Joined:
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    Messages:
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    Thanks for the feedback.
    You may mark your thread solved using button top left.
     
  14. mucker2010

    mucker2010

    Joined:
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    Messages:
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    Glad to have helped. So it was the encryption then ;-)
     
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