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Solved: Can't connect to wireless networks after reinstalling win7


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KingKenny KingKenny is offline
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29-Jul-2012, 02:13 PM #1
Solved: Can't connect to wireless networks after reinstalling win7
Hey,
I've formatted my computer(Windows 7 Ultimate 64bit), then I downloaded my wireless adapter driver from my manufacturer's website, installed it and tried to join my home network but it couldn't connect it(or my neighbor's network, which I could access before formatting the computer).
Is there any solution?
etaf's Avatar
etaf   (Wayne) etaf is offline
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29-Jul-2012, 03:08 PM #2
can we see an ipconfig /all and a device manager screen shot

------------------------------------------------------------------------
ipconfig /all
If you cannot access the internet with this PC, then you will need to paste the results into something like notepad and then copy onto a machine that can access the internet and post the results in a reply here.
Save the file to a USB flash drive or other removable media. Plug it into the working computer with internet access and copy the file and paste here.

We would like to see the results from an ipconfig /all - post back the results in a reply here.

Hold the Windows key and press R, then type CMD then press Enter to open a command prompt box
(A new dialogue box - black with white font, will appear on screen ):

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 > network.txt & network.txt

It will export the results into notepad and then automatically open the notepad and display on your screen.

Now all you need to do is copy and paste those results into a reply here
to do that:
From the notepad menu - choose Edit - Select all
all the text will now be highlighted
Next
From the notepad menu - choose Edit - Copy

Now go back to the forum - goto the reply and then right click in the reply box and paste the results.
The results from the notepad should now appear in the forum reply.
------------------------------------------------------------------------
------------------------------------------------------------------------
Device Manager
Post back the results in device manager
You will now need to take a screen shot and copy that back to the working PC.
Save the file to a USB flash drive or other removable media. Plug it into the working computer with internet access and copy the screen shot and attach the screen shot in a reply on the forum here.

how to access device manager for different windows versions
http://www.computerhope.com/issues/ch000833.htm

Hold the Windows key and press Pause key, should open to allow device manager to be seen

on a laptop you may need to use Hold the Windows key and press FN key + the pause key

if this does not work then -

Windows 7 or Vista
Click on the Start Orb
In the Start Search box type
device manager and then press enter

-------------------

Start > control Panel {Vista set to classic view}> system > {Vista, device manager on left hand side} {XP hardware Tab, device manager button} >
windows 7
start > control panel> System and Security> Device Manager


network adaptors, click on the + > post back the devices listed there
are there any ! ? or X


post a screen shot of the device manager - network adapters

To post a screen shot of the active window.
1) 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.
OR
2) if you are using Vista/Windows 7 you can use the "snipping tool" which is found in Start> All programs> Accessories> Snipping Tool

To upload the screen shot to the forum, open the full reply window ("Go Advanced" button) and use the Manage Attachments button to upload it here.
Full details are available here http://library.techguy.org/wiki/TSG_...g_a_Screenshot
------------------------------------------------------------------------
__________________
Wayne
Please let us know what the final solution was to any problem posted
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KingKenny KingKenny is offline
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29-Jul-2012, 03:41 PM #3
ipconfig

Windows IP Configuration

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

Wireless LAN adapter Wireless Network Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek RTL8191SU Wireless LAN 802.11n USB 2.0 Network Adapter
Physical Address. . . . . . . . . : 00-1F-1F-D7-D8-D4
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek RTL8168D/8111D Family PCI-E Gigabit Ethernet NIC (NDIS 6.20)?
Physical Address. . . . . . . . . : 00-24-1D-DA-F4-FC
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{A1B9D307-F557-4ADE-98FC-45A164A83E2E}:

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 isatap.{E74C1EA9-97D0-418C-ADFF-2BC09C335804}:

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

device manager screen shot
http://imageshack.us/photo/my-images/40/20137006.png/
etaf's Avatar
etaf   (Wayne) etaf is offline
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29-Jul-2012, 03:46 PM #4
can you connect to the router with a cable and does it work ?

lets see an xirrus screen shot
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Run Xirrus Wi-Fi Inspector
Download and install

If you cannot access the internet with this PC, then you will need to copy the program across to the faulty PC
Save the file to a USB flash drive or other removable media. Plug it into the working computer with internet access and copy the file and install the program.
You will now need to take a screen shot and copy that back to the working PC and attach the screen shot in a reply on the forum here.

http://www.xirrus.com/Products/Wi-Fi-Inspector.aspx
Direct link to the program is here http://info.xirrus.com/Wi-FiInspectorConfirmation.html

{If the above link does not work heres another link http://www.pcworld.com/downloads/fil.../download.html}

Then run and install the program - on a wireless enabled PC/Laptop
if you get an error - You need will need to haveNET Framework installed for the WiFi Inspector to function.

Run the program

A user guide is available here http://www.xirrus.com/cdn/pdf/Xirrus...-1-RevB-6.aspx

post a screen shot of the program running.
if there are a lot of networks showing can you click on "networks" top lefthand area - so we can see all the network information.

post which SSID name is yours, its located in the list, under network "Adapter Name" (1st column)

To post a screen shot of the active window.
1) hold the Alt key and press the PrtScn key. Open the Windows PAINT application (Start> All Programs> Accessories> Paint) and Paste the screen shot. You can then use PAINT to trim to suit, and save it as a JPG format file.
OR
2) if you are using Vista/Windows 7 you can use the "snipping tool" which is found in Start> All programs> Accessories> Snipping Tool

To upload the screen shot to the forum, open the full reply window ("Go Advanced" button) and use the Manage Attachments button to upload it here.
Full details are available here http://library.techguy.org/wiki/TSG_...g_a_Screenshot

Note:
For a reliable (or robust as the Xirrus user guide says) wireless connection you need a signal of about -70 dBm or better. "A desirable signal level for a robust Wi-Fi connection will be green".
note: the signal level is a negative number, so for example -88 is worst and -40 is better

If you are using the Mac OS then use http://www.istumbler.net/ or
if you want to optimise base station position and signal strength / dead spots use
http://www.chimoosoft.com/products/apgrapher/ which has a graph function to monitor signal
------------------------------------------------------------------------
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KingKenny KingKenny is offline
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29-Jul-2012, 04:19 PM #5
I can't connect the computer to the router with a cable because it's a desktop computer and I can't move it to the room where the router is(it's not hard, it's impossible).

Here's a picture of this program running: http://i49.tinypic.com/oqd15i.png
My network is the one called "Yarin".
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etaf   (Wayne) etaf is offline
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29-Jul-2012, 04:23 PM #6
have you got any PC that can connect to the router by cable ?
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29-Jul-2012, 04:26 PM #7
Yes I got one connected to the router by cable.
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etaf   (Wayne) etaf is offline
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29-Jul-2012, 04:27 PM #8
can we see an ipconfig /all from that pc
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29-Jul-2012, 06:25 PM #9
Yes:

Windows IP Configuration

Host Name . . . . . . . . . . . . : X-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : Home

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : Home
Description . . . . . . . . . . . : Realtek RTL8168D/8111D Family PCI-E Gigabit Ethernet NIC (NDIS 6.20)
Physical Address. . . . . . . . . : 6C-F0-49-71-AD-66
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::a1b5:9fe5:92ba:f556%11(Preferred)
IPv4 Address. . . . . . . . . . . : 10.0.0.1(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : ‰…˜€™… 29 ‰…‰ 2012 22:12:43
Lease Expires . . . . . . . . . . : ‰…™‰ 30 ‰…‰ 2012 02:12:42
Default Gateway . . . . . . . . . : 10.0.0.138
DHCP Server . . . . . . . . . . . : 10.0.0.138
DHCPv6 IAID . . . . . . . . . . . : 242020425
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-16-C0-B3-21-6C-F0-49-71-AD-66
DNS Servers . . . . . . . . . . . : 10.0.0.138
NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.Home:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : Home
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* 11:

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. . . . . . . . . . . : 2001:0:9d38:953c:2882:2ef3:b04e:3b17(Preferred)
Link-local IPv6 Address . . . . . : fe80::2882:2ef3:b04e:3b17%13(Preferred)
Default Gateway . . . . . . . . . : ::
NetBIOS over Tcpip. . . . . . . . : Disabled
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etaf   (Wayne) etaf is offline
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30-Jul-2012, 03:41 AM #10
now an ipconfig /all from a wireless connected and working device

then from the desktop an ipconfig /all and an xirrus screen shot

make sure we know which is which
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30-Jul-2012, 04:03 AM #11
Working wireless connected and working device(laptop)

Windows IP Configuration

Host Name . . . . . . . . . . . . : user-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : Home

Wireless LAN adapter Wireless Network Connection:

Connection-specific DNS Suffix . : Home
Description . . . . . . . . . . . : Intel(R) WiFi Link 5100 AGN
Physical Address. . . . . . . . . : 00-22-FB-51-20-EE
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::311b:933f:9d05:ac9c%11(Preferred)
IPv4 Address. . . . . . . . . . . : 10.0.0.3(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : ‰…™‰ 30 ‰…‰ 2012 08:54:06
Lease Expires . . . . . . . . . . : ‰…™‰ 30 ‰…‰ 2012 11:32:18
Default Gateway . . . . . . . . . : 10.0.0.138
DHCP Server . . . . . . . . . . . : 10.0.0.138
DHCPv6 IAID . . . . . . . . . . . : 234889979
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-15-41-0D-78-00-22-FB-51-20-EE
DNS Servers . . . . . . . . . . . : 10.0.0.138
NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter Local Area Connection* 6:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : isatap.{0DEA8249-6701-4CFB-B8AC-09217A9070D1}
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 7:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 02-00-54-55-4E-01
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2001:0:9d38:953c:2ca6:1a39:f5ff:fffc(Preferred)
Link-local IPv6 Address . . . . . : fe80::2ca6:1a39:f5ff:fffc%12(Preferred)
Default Gateway . . . . . . . . . : ::
NetBIOS over Tcpip. . . . . . . . : Disabled

Tunnel adapter Local Area Connection* 11:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : isatap.{0DEA8249-6701-4CFB-B8AC-09217A9070D1}
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 12:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : isatap.{0DEA8249-6701-4CFB-B8AC-09217A9070D1}
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 13:

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

My desktop(which can't connect to my network)

Windows IP Configuration

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

Wireless LAN adapter Wireless Network Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek RTL8191SU Wireless LAN 802.11n USB 2.0 Network Adapter
Physical Address. . . . . . . . . : 00-1F-1F-D7-D8-D4
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek RTL8168D/8111D Family PCI-E Gigabit Ethernet NIC (NDIS 6.20)?
Physical Address. . . . . . . . . : 00-24-1D-DA-F4-FC
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{A1B9D307-F557-4ADE-98FC-45A164A83E2E}:

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 isatap.{E74C1EA9-97D0-418C-ADFF-2BC09C335804}:

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

picture: http://i50.tinypic.com/eg2utz.png
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etaf   (Wayne) etaf is offline
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30-Jul-2012, 05:25 AM #12
is this the driver you used

http://www.realtek.com/downloads/dow...Downloads=true

at least it can see the wireless -
try logging into the router and removing the wireless security and see if it can connect to your wireless with no security on
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KingKenny KingKenny is offline
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30-Jul-2012, 01:23 PM #13
I downloaded the driver from my manufacturer's site the driver(my adapter is edimax ew-7612 uan):
http://www.edimax.com/en/produce_det...id=1&pl2_id=44

I tried to remove the wireless security, didn't help.
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etaf   (Wayne) etaf is offline
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30-Jul-2012, 03:47 PM #14
Uninstall and allow windows to re-install the adapter and Driver
I would goto device manager and right click on the adapter and uninstall/remove and then restart the PC and let windows re-detect the hardware and reinstall the driver
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KingKenny KingKenny is offline
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30-Jul-2012, 04:42 PM #15
I'll try that.
I removed again the wireless security and it actually worked, then I enabled again the password but it didn't connect to the network(again).
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