Advertisement

There's no such thing as a stupid question, but they're the easiest to answer.
Login
Search

Advertisement

Search Search
Search for:
Tech Support Guy > > >

Laptop cannot connect to wifi


(!)

FlavoFraz's Avatar
FlavoFraz FlavoFraz is offline
Computer Specs
Member with 1 posts.
THREAD STARTER
 
Join Date: Oct 2012
Experience: Intermediate
13-Oct-2012, 09:34 PM #1
Laptop cannot connect to wifi
Hi,

I just recently bought a wireless router (DIR-615) from dlink. After installing it my laptop cannot connect to the wifi network but all other devices(iphones,etc..) can. After speaking with the dlink techs they told me it probably was a problem with my wifi adapter. I downloaded the latest driver with no success. I don't know what to try anymore.

What info would you need to help me?

My computer is a notebook by acer - Aspire 1640
etaf's Avatar
etaf   (Wayne) etaf is online now
Computer Specs
Moderator with 51,605 posts.
 
Join Date: Oct 2003
Location: Surrey, UK
14-Oct-2012, 06:44 AM #2
can you connect by cable tothe router and see if connects
while connected by wireless
can we see an ipconfig /all an xirrus screen shot - see below

What firewall / security suite or anti-virus do you currently have on the PC - or you have ever had on the PC in the past - any trial ware - like Norton, Mcafee , AVG etc

try a tcp/ip reset - see below

------------------------------------------------------------------------
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.
------------------------------------------------------------------------
------------------------------------------------------------------------
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 have NET 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
------------------------------------------------------------------------

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

TCP/IP stack repair options for use with Vista/Windows 7

Start> Programs> Accessories> and right click on Command Prompt, select "Run as Administrator" to open a command prompt box
(A new dialogue box - black with white font, will appear on the screen ):

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

Note: Type only the text in bold and red for the following commands.

Reset WINSOCK entries to installation defaults: netsh winsock reset catalog and press enter

Reset IPv4 TCP/IP stack to installation defaults. netsh int ipv4 reset reset.log and press enter

Reset IPv6 TCP/IP stack to installation defaults. netsh int ipv6 reset reset.log and press enter

ReStart (reboot) the machine.

If you receive the message
The requested operation requires elevation.
Then please open the command prompt as administrator - as requested above
Start> Programs> Accessories> and right click on Command Prompt, select "Run as Administrator" to open a command prompt box
(A new dialogue box - black with white font, will appear on screen ):

Please note and post back - if you receive the following message :-
Access is Denied

please post back the results in a reply here - its important we know that these commands have worked correctly and not produced any errors
right click in the command prompt box
select all
enter
control key + C key - to copy
then reply here and
control key + V to paste

Details also here
http://support.microsoft.com/kb/299357


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

TCP/IP stack repair options for use with Windows XP with SP2/SP3

Start, Run, CMD to open a command prompt box
(A new dialogue box - black with white font, will appear on the screen ):

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

Note: Type only the text in bold and red for the following commands.

Reset TCP/IP stack to installation defaults, type: netsh int ip reset reset.log and press enter

Reset WINSOCK entries to installation defaults, type: netsh winsock reset catalog and press enter

ReStart (reboot) the machine.

Please note and post back - if you receive the following message :-
Access is Denied

please post back the results in a reply here - its important we know that these commands have worked correctly and not produced any errors
right click in the command prompt box
select all
enter
control key + C key - to copy
then reply here and
control key + V to paste

Details also here
http://support.microsoft.com/kb/299357

------------------------------------------------------------------------
__________________
Wayne
Please let us know what the final solution was to any problem posted
As Seen On

BBC, Reader's Digest, PC Magazine, Today Show, Money Magazine
WELCOME TO TECH SUPPORT GUY!

Are you looking for the solution to your computer problem? Join our site today to ask your question. This site is completely free -- paid for by advertisers and donations.

If you're not already familiar with forums, watch our Welcome Guide to get started.


(clock)
THIS THREAD HAS EXPIRED.
Are you having the same problem? We have volunteers ready to answer your question, but first you'll have to join for free. Need help getting started? Check out our Welcome Guide.

Search Tech Support Guy

Find the solution to your
computer problem!




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools


WELCOME
You Are Using: Server ID
Trusted Website Back to the Top ↑