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Wireless non-connection


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2 replies to this topic

#1 Captain Pike

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Posted 12 April 2011 - 08:41 PM

We have time warner cable, Internet and phone. This came with a Scientific-Atlanta modem/demultiplexer which has worked fine for couple of years. Soon after the installation, I bought a Netgear wireless router a flat white box with the little antenna. This thing worked great for a year or more, then we started having trouble connecting wirelessly.
We have many laptops coming and going sporting various operating systems, along with "smart", cell phones, etc. A few months ago, we started having trouble connecting and someone said we had to, "reset the modem". Powering off, waiting 10 seconds and powering on did the trick and once in a while this was no no problem. It has gotten to the point now where, just about any time a connection is broken, will have to reset to get back on-line, again.
Directly connected computers have no problem.
Anybody have any ideas?
Both devices must be reset get this working again resetting either one alone (modem or router) does never solve the problem by itself both devices must reset.

Anybody know of a good utility which could be used by a directly connected machine to figure what's going on?
What about Netgear's, "Smart Wizard" how do I get it? Does it work?

I've had such an awful time with Netgear tech support, I'm looking for a different wireless router, any ideas?

Any help given will be greatly appreciated.

_inP.

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#2 etaf

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Posted 15 April 2011 - 04:31 AM

if the wired PCs are working then the MODEM should be OK and its a problem with the router- it maybe old and just need replacing - how old is the router

anyway

when its working would you post all the following information from a wireless PC - and then when it disconnects repeat ALL the tests from the disconnected PC
I'm assuming NOT all the wireless devices lose the connection - would you confirm if ALL devices or just one or two and others continue to work OK


------------------------------------------------------------------------
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 results here

We would like to see the results from 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 to notepad and then automatically open notepad.

Now all you need to do is copy and paste those results to a reply here
to do that:
From the notepad menu - choose Edit - Select all
all the text will be highlighted
Next
From the notepad menu - choose Edit - Copy
Now go back to the forum - reply and then right click in the reply box and paste
------------------------------------------------------------------------

------------------------------------------------------------------------
Ping Tests
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 results here

Start> Run {search bar in Vista}> CMD to open a DOS window and type:

Type the following command
Ping {plus the number thats shown against the default gateway shown in above ipconfig /all}
Post back the results
rightclick in the box
select all
enter
control key + C key - to copy
then reply here and
control key + V to paste

Type the following command
Ping google.com
Post back the results
rightclick in the box
select all
enter
control key + C key - to copy
then reply here and
control key + V to paste

Type the following command
Ping 209.183.226.152
post back results
rightclick in the box
select all
enter
control key + C key - to copy
then reply here and
control key + V to paste
------------------------------------------------------------------------

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

http://www.xirrus.com/library/wifitools.php
Direct link to the program is here http://www.xirrus.com/library/wifi_download_redirect.php
Then run and install the program - on a wireless enabled PC/Laptop
if you get an error - You need NET Framework installed for the WiFi Inspector to function.

Run the program

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, and also post which network "Adapter Name" (1st column) is yours on the list

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.
Full details are here http://library.techguy.org/wiki/TSG_Posting_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.
------------------------------------------------------------------------
ETAF

#3 MBakerNH

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Posted 15 April 2011 - 06:22 AM

Sounds like heat and/or faulty equipment. Try giving it a good cleaning, and keeping it in a ventilated spot, if possible. I've seen the Netgears go when they become too heat-stressed.




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