ACER Laptop shows "connected" to internet, but really isn't.

Teacher

ACER Laptop shows "connected" to internet, but really isn't.

I just became a UVERSE customer.  When setting up the wireless connections from the router to my desktop and laptop, all went well.  I then attempted to set up my wife's ACER laptop (Windows XP) and after putting in the wireless network key the computer shows "connected" with an EXCELLENT strength rating.  However, when I try to surf the web or get email, all I get is "internet explorer cannot connect" messages.  What gives?  Two out of 3 computers working.  It worked fine with the DSL connection we had prior to this installation, but suddenly everything changes?  Is this a DNS issue?  I don't know how to troubleshoot this.  HELP!

Message 1 of 23 (1,592 Views)
ACE - Master

Re: ACER Laptop shows "connected" to internet, but really isn't.

I would recommend that you remove/delete the exisiting wireless connection and then re-add it.  Instructions below:

 

http://www.tp-link.us/article/?faqid=186

"If you find this post helpful and it solved your issue please mark it as a solution.  This will help other forum members locate it and will also let everyone know that it corrected your problem. If they have the same issue they will know how to solve theirs"

*The views and opinions expressed on this forum are purely my own. Any product claim, statistic, quote, or other representation about a product or service should be verified with the manufacturer, provider, or party.
Message 2 of 23 (1,566 Views)
Teacher

Re: ACER Laptop shows "connected" to internet, but really isn't.

Thanks, but that was the first thing I did.  No dice.

Message 3 of 23 (1,551 Views)
Community Support

Re: ACER Laptop shows "connected" to internet, but really isn't.

Hi jimmaynard3,

 

I had a similar problem a long time ago where one device would just not connect. I ended up finding out that the default security of WPA/WPA2 that the U-verse router used was not compatible with my older device. I changed it to WEP and everything worked after that. Hopefully, that helps.

 

To change it to WEP:

  1. Login to your router at http://192.168.1.254
  2. Select the tab Settings
  3. Select the sub-tab LAN
  4. Select the sub-tab Wireless
  5. From there you may need to enter your system password found on the side of the U-verse router (different from the wireless network key)
  6. You will be able to change all your wireless settings including your Wireless Security Settings.

-David T

If you encounter any issues with your service or equipment, I recommend checking out our Troubleshoot & Resolve solutions to help diagnose the issue.
Employee Contributor*
*I am an AT&T employee and the postings on this site are my own and don't necessarily represent AT&T's position, strategies or opinions.
Message 4 of 23 (1,538 Views)
ACE - Master

Re: ACER Laptop shows "connected" to internet, but really isn't.

It could be a DNS issue, or it could be an IP Address issue.   If you open a command Prompt (DOS Window) and type the command:

IPCONFIG

and hit the Enter key to run it, it should return some information for you, including your computer's IP Address and DNS servers.


Jerry B.
"GeekBoy"

--

For additional help, please send a PM to ATTCustomerCare.
*The views and opinions expressed on this forum are purely my own. Any product claim, statistic, quote, or other representation about a product or service should be verified with the manufacturer, provider, or party.
Message 5 of 23 (1,536 Views)
Teacher

Re: ACER Laptop shows "connected" to internet, but really isn't.

David,

 

Thanks.  I tried both WEP-Open and WEP-Shared.  Neither one works.  The message I get when I try to switch to them is: "n and n/b/g mode only support WPA2 and WPA/WPA2."

 

Not sure what that means, but I'm guessing it's just refusing to change to WEP.

 

Jim

Message 6 of 23 (1,529 Views)
Community Support

Re: ACER Laptop shows "connected" to internet, but really isn't.

Hi Jim,

 

I completely forgot about that. In order to change the type so you can attempt to change this, you just need to go down to the option Wireless Mode and choose 802.11b/g. One thing that may be just worth trying so you don't mess up too many of your settings is to just disable security, and change the network name (SSID) to something like Test. Save the changes and do a quick test, and if it can connect, you know changing the settings is probably what will be needed.

 

-David T

If you encounter any issues with your service or equipment, I recommend checking out our Troubleshoot & Resolve solutions to help diagnose the issue.
Employee Contributor*
*I am an AT&T employee and the postings on this site are my own and don't necessarily represent AT&T's position, strategies or opinions.
Message 7 of 23 (1,525 Views)
Teacher

Re: ACER Laptop shows "connected" to internet, but really isn't.

David,

 

When I changed to WEP, then changed 802.11b/g and hit save, I was disconnected from the internet entirely on all machines.  I had to call UVERSE and have them reset the modem to the default settings and I'm now back on line.   The Acer problem has still not been resolved, though when it's connected via ethernet, it does work fine, but takes away laptop mobility.  I'm not comfortable to opening up the security to WEP for the sake of security purposes. 

Message 8 of 23 (1,514 Views)
Community Support

Re: ACER Laptop shows "connected" to internet, but really isn't.

Hi Jim,

 

It sounds like you were making the changes on a wireless connection. I apologize for not taking that into consideration. When you change your wireless network settings, you will have to reconfigure your wireless connections on the devices, which is easily done by just reconnecting and entering your network key once again. If you prefer, we can discuss this over the phone, and I can remotely login to your connection so we can go through this. Just send us a detailed message by clicking here. Be sure to include your name, account number, phone number, and the best time to reach you. 


Keep an eye on the at the top right corner of your screen for a response.

In the meantime, let me know if you have any other questions or concerns!

-David T

If you encounter any issues with your service or equipment, I recommend checking out our Troubleshoot & Resolve solutions to help diagnose the issue.
Employee Contributor*
*I am an AT&T employee and the postings on this site are my own and don't necessarily represent AT&T's position, strategies or opinions.
Message 9 of 23 (1,513 Views)
Teacher

Re: ACER Laptop shows "connected" to internet, but really isn't.

David,

 

I'm back on-line as I was before this whole mess with the Acer computer.  The XBOX and other home computers are working properly and I connected with each one and put in the proper information.  However, the ACER still shows a connection to the internet, with an "excellent" signal, but nothing happens when I try to surf.  Square one with the Acer.  If you can talk me through the process on the Acer I'm game.  But after dealing with the other stuff all day today, I'm somewhat hesitant to mess with the others now that they are working again.  I'll go to the link you provided. 

 

Thanks,

Jim

Message 10 of 23 (1,499 Views)
Teacher

Re: ACER Laptop shows "connected" to internet, but really isn't.

I did that and yes, I can see the connection, IP address, subnet mask and default gateway.

 

Jim

Message 11 of 23 (1,497 Views)
ACE - Master

Re: ACER Laptop shows "connected" to internet, but really isn't.


jimmaynard3 wrote:

I did that and yes, I can see the connection, IP address, subnet mask and default gateway.

 

Jim


OK, is the IP address  a Microsof t "private" assigned address? (does it start with 169.x.x.x?).  If so, then you need to get a valid IP address.  If not, then I would next check your DNS.  From the Command Propt, issue the command:

NSLOOKUP www.google.com

and see what is returned to you.  If you don't get back several lines of information indicating:

...

Name:www.google.com

Address: 74.125.225.116

Name:www.google.com

Address: 74.125.225.112

 

Then you have a DNS issue.  


Jerry B.
"GeekBoy"

--

For additional help, please send a PM to ATTCustomerCare.
*The views and opinions expressed on this forum are purely my own. Any product claim, statistic, quote, or other representation about a product or service should be verified with the manufacturer, provider, or party.
Message 12 of 23 (1,498 Views)
Teacher

Re: ACER Laptop shows "connected" to internet, but really isn't.

The IP address begins with 192.168.... not with 169.  I believe it is a valid address.  It worked fine with ATT DSL service but when we switched to UVERSE, it stopped working.  As for your other suggestion:

 

On the command prompt, I typed NSLOOKUP www.google.com (with a space between them).  Answer was:  Server: Unknown.  Address: 208.67.222.222.  DNS request timed out.  Can't find address for server www.google.com.  Timed out.

 

Jim

Message 13 of 23 (1,485 Views)
Highlighted
ACE - Expert

Re: ACER Laptop shows "connected" to internet, but really isn't.

Okay, reading through this thread, I will now recap:

 

  1. Yes, your Windows XP, as it is currently set, may have to speak WEP instead of the WPA your RG is configured for.
  2. The RG can't speak WEP over 802.11n, so to use WEP you have to switch to 802.11b/g
  3. When you switch the RG to 802.11b/g and WEP, all of your wireless devices configured for WPA will fail to connect (because their settings are now incorrect).  However, for the purpose of testing, you could proceed to see if the XP machine is working.  Also, any PC connected via an Ethernet cable work continue to work fine as well.
  4. Resetting the RG back to factory defaults puts you back to step 1 because all of your existing clients were set up for the factory defaults.  The XP machine still does not work for whatever reason it didn't work in the first place.

Okay, going forward:

  1. Is your XP PC running Service Pack 3 of XP, i.e. Windows XP SP3?  If not, you should perform this upgrade to get fixes for WPA/WPA2 handling.  XP prior to SP2 doesn't handle WPA/WPA2 at all.
  2. Once you're upgraded to SP3, delete the current connection and create it manually, entering the SSID, passphrase and setting the WEP/WPA settings to exactly what your RG has.

 

*The views and opinions expressed on this forum are purely my own. Any product claim, statistic, quote, or other representation about a product or service should be verified with the manufacturer, provider, or party.
Message 14 of 23 (1,472 Views)
Teacher

Re: ACER Laptop shows "connected" to internet, but really isn't.

Thank you.  I'm assuming that I need to connect the Acer thru the ethernet (to avoid disconnecting all the other machines again), install the SP3, then delete the current connection and create another, correct?  In your post you mention "RG".  Does that represent the Uverse router?

 

Jim  

Message 15 of 23 (1,465 Views)
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