My husband has a laptop PC and it is on a Linkys wireless router…

No,they couldn't get onto the internet at Best Buy when they tested it. Yet, I am looking the laptop right now and there is an icon in the lower right hand corner that says Status… connected, Signal: Excellent. Yet, you cannot go on the internet. It says Internet Explorer cannot display the webpage.

I did all of the above and it is still not working. I get the same message: Internet explorer cannot display the webpage. Yet the little wireless icon says I am connected, with a strong signal. On the other hand, a program that popped up, with some kind of update, says there is no internet connection. And before we went through the steps you indicated, there was another little icon in the lower right corner that said that the wireless adaptor was not installed. Although when I go to look at its properties it says it is running fine. I don't understand anything any more.

There are three things in there. There is 1394 Connection, Disabled, firewalled 1394 net adapter. Next there is Local Area Connection Disabled, firewalled, Realrek RTL8139/810x family and finally there is Wireless Network Connection 3, connected, firewalled, Wireless-G Notebook adapter

I uninstalled all three and then rebooted. The "found hardware" appeared TWICE and showed both the family one (second from my list) and the G-Notebook adapter. However, not it says that No wireless network found in range. Even when I clicked to refresh the network list. On the bottom bar, to the right, I shows two little computer icons, both with a red X next to them.

All three items in the LAN or High speed internet window are ENBLED. However, there is no internet connection The first of the three (Wireless network connection 5) is Not connected, and the Local Area Connection 2 is "network cable unplugged". The third one on the list, I394 Connection 2 says "connected" but still no internet. And those two computer icons in the bottom tray are still with the red Xs next to them.

When you right click it to view available, you get to the window where is says No wireless networks were found in range. Yet, we are a few few feet away from the router.

yes, there is a checkmark there

You cannot right click on it, just left click. And indeed, what comes up is "No wireless networks were found in range. I am wondering whether a new network should be created?

I picked the first network and from there, I did right click on available wireless and still the same response that no wireless networks are available. When I started this, it said that the connection was up and running, strong signal but no internet. Now, no wireless network seems to be detected.....

No, I don't think we do.

We have high speed through Comcast. CAble

Before I do that, let me tell you that I unplugged the adaptor from the laptop and then plugged it back on. Now it says it is connected, strong signal, all that, like in the beginning, but still no internet connection. If I do disconnect the router and modem, I am going to lose you and I don't know how to get back to you. Send me an email I guess so that I can get back on track. You have my email,[email protected]

After so many attempts and booting and rebooting, we are back to square one, where we started. I did all the steps you indicated and the wireless icon shows that I am connected and strong signal is present but same thing: Internet explorer cannot display the webpage. No internet is available. Maybe you or somebody else can think of other possibilities but I have to go to bed already. I am tired. Send me an email that I can look at tomorrow if you will. Thanks.

I just wanted to let you know that NOTHING works. It did work perfectly until recently. Then, all of a sudden, after I unplugged the router, the PC stopped getting the internet.

We have several computers. The one I am using is the only desktop, a Mac. It is connected to the cable modem and to the wireless router. There is a printer, scanner as well. We have Comcast as the internet provider. The router is Linksys. Now, my two daughters have Mac Notebooks. One of them doesn't get reliable internet, has to stay next to where the router is. The Apple people suggested a replacement wireless card of an external adaptor. I got her an adaptor but she still prefers to use her laptop without it, even if the internet is iffy. Sometimes, she does use her adapter. My other daughter has a somewhat newer Mac notebook and she usually has no problem connecting to the internet. My husband has this older PC (2003) laptop and it worked OK until recently. One evening, while his PC was updating some program, I turned off the internet (unplugged the router) to make the girls go to bed. Apparently, that was fatal to my husband's PC. After that, it didn't get internet at all although the icon in the lower right hand corner says "connected, strong signal". However, some program or other that wants to update signals there is no internet connection. The Best Buy geeks said there is a hardware problem and it would cost hundreds of dollars to fix it. So, my husband went and got himself an Apple laptop which works fine, obviously. Still, we would like to know if we could still salvage his PC just because it is the only PC in the house.

IP address line 192.168.1.106
Gateway: 192.168.1.1

"ping request could not find host www.yahoo.com. Please check the name and try again."

So, to get to what you are saying (it is Simona now, not Teodor, my husband), I go to Run, then type CMD (do you type the quotation marks or not?" and then this new thing? What I get in the black window after typing CMD is C:\Documents and Settings\Teodor Georgescu> Do I type what you are saying after this or what? With quotations or not? With some space before the dash and so? With or without quotation marks or space between t and -, what I get is

The ...... those numbers is not recognized as an internal or external command, operable program or batch file.

The previous instructions were executed by my husband on the defective computer. I am now trying to take over since he is at work. I am not as familiar with PCs any more. So how do I get to the command prompt again? From Run and then CMCSo you type this thing from the Run button window? With the quotation marks? And you leave a space between tracert and -d?

Ok I got a lot of stuff now. 17 lines.
1 2 ms <1 ms <1 ms 192.168.1.1
2 * * * Request timed out
3 7 ms 7 ms 7 ms 68.85.140.73
4 10 ms 9 ms 10 ms 68.85.162.161
5 11 ms 11 ms 11 ms 68.85.162.181
6 14 ms 15 ms 15 ms 68.85.162.70
7 17 ms 19 ms 19 ms 68.86.90.65
8 24 ms 23 ms 23 ms 68.86.85.97

and on and on until 17. Do you want all of them?

OK, I did the ping with the numbers first and I got 4 replies. Then I did the ping www.wboc.com and the answer is:

Ping request could not find host www.wboc.com. Please check the name and try again.

Yes, both of those are set for Automatic. WE've been here before, like eons before.

It says: Default Server: cns.chelmsfdrdc2.ma.boston.comcast.net Address: 68.87.71.230

Under This connection uses the following items we have:

Odyssey Network Services
File and Printer Sharing for Microsoft Networks
QoS Packet Scheduler
Internet Protocol (TCP/IP).

All of them are checked. There is no IPv6 there

OK, I assume what I type is without the quotation marks. And there is a space after ipconfig and before the slash. It says "unrecognized command". Also "unrecognized command" for netsh inti ip reset....
When I type the ping www.yahoo.com I get
Server: www-real.wa1.b-yahoo.com
Address: 69.147.76.15
AliasesL www.yahoo.com, www.wa1.b.yahoo.com
DNS request timed out. Timeout was 2 seconds
The same thing happened with net stop dnscache (unrecognized command)
The ping to yahoo got me to the same thing as above

What I did while I waited for you was reboot the computer and also I took off the adapter and then plugged it back into the computer. Then, when I typed the command again (ipconfig...) what I got was:
Windows IP configuration

Successfully flushed t he DNS Resolver cache.
I then tried the PIng www.yahoo.com and again what I got was: Ping request could not find host www.yahoo.com. Please check the name and try again.
I tried the sfc.exe /scannow and nothing at all happens

OK, I did these twice. After the first two commands, the computer asks to be restarted. The first time that I did that, the icon showed no connectivity (it used to say connected, strong signal.). I rebooted again and this time, it shows connectivity is ON. But the ping didn't work. (please check name and try again). I tried the net stop dnscache and the message was The DNS client service was stopped successsfully.

You know, before when you said we were going to try to scan the system to see if everything was as it should be I told you nothing happened. Well, after a long while, it started to scan and showed some progress but then, with the numerous attempts and rebooting, that was discontinued. Should it be tried again perhaps?
OK, I am starting that scan now.

Yes, I did the Ping over and over again and it is not recognized. I finished the scan and after all that, I got a window saying Microsoft Vulnerabilities and there were none listed. But it said "you need to update your Internet Explorer and I said Sure. But after going through a few preliminary windows, it got to the point when it had to get the update from the internet and the internet is not working so it cannot get updates after all. I know that this may be more frustrating to to than to us because after all, my husband has a new laptop now (Mac). It is intriguing however to have a PC that worked fine and then boom, it stopped working. Maybe it is time to junk it, who knows?

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 3:43:42 PM, on 1/23/2010
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v8.00 (8.00.6001.18702)
Boot mode: Normal

Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\PROGRA~1\COMMON~1\AOL\ACS\AOLacsd.exe
C:\WINDOWS\System32\Ati2evxx.exe
C:\Program Files\Trend Micro\AntiVirus 2007\tavsvc.exe
C:\Program Files\Trend Micro\AntiVirus 2007\Components\tmproxy.exe
C:\Program Files\Webroot\Spy Sweeper\SpySweeper.exe
C:\Program Files\Trend Micro\AntiVirus 2007\tavui.exe
C:\WINDOWS\system32\ezSP_Px.exe
C:\Program Files\Java\j2re1.4.2_01\bin\jusched.exe
C:\Program Files\QuickTime\qttask.exe
C:\WINDOWS\System32\spool\drivers\w32x86\3\hpztsb10.exe
C:\Program Files\Hewlett-Packard\HP Software Update\HPWuSchd2.exe
C:\Program Files\HP\hpcoretech\hpcmpmgr.exe
C:\Program Files\Sony\HotKey Utility\HKserv.exe
C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe
C:\Program Files\Apoint\Apoint.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Messenger\msmsgs.exe
C:\Program Files\WPM_Monitor\WPMMonitor.exe
C:\Program Files\Yahoo!\Messenger\ymsgr_tray.exe
C:\Program Files\Apoint\Apntex.exe
C:\Program Files\Sony\HotKey Utility\HKWnd.exe
C:\WINDOWS\system32\wscntfy.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://www.yahoo.com/search/ie.html
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.yahoo.com/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = http://rd.yahoo.com/customize/yessentials/defaults/sb/*http://www.yahoo.com/search/ie.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKCU\Software\Microsoft\Internet Explorer\SearchURL,(Default) = http://search.yahoo.com/search?p=%s
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,First Home Page = C:\Program Files\AOL Toolbar\welcome.html
O2 - BHO: (no name) - MRI_DISABLED - (no file)
O2 - BHO: Ask Search Assistant BHO - {0579B4B1-0293-4d73-B02D-5EBB0BA0F0A2} - C:\Program Files\AskSBar\SrchAstt\1.bin\A2SRCHAS.DLL
O2 - BHO: Ask Toolbar BHO - {F0D4B231-DA4B-4daf-81E4-DFEE4931A4AA} - C:\Program Files\AskSBar\bar\1.bin\ASKSBAR.DLL
O3 - Toolbar: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O3 - Toolbar: Ask Toolbar - {F0D4B239-DA4B-4daf-81E4-DFEE4931A4AA} - C:\Program Files\AskSBar\bar\1.bin\ASKSBAR.DLL
O3 - Toolbar: AOL Toolbar - {4982D40A-C53B-4615-B15B-B5B5E98D167C} - C:\Program Files\AOL Toolbar\toolbar.dll (file missing)
O4 - HKLM\..\Run: [ezShieldProtector for Px] C:\WINDOWS\system32\ezSP_Px.exe
O4 - HKLM\..\Run: [VAIO Recovery] "C:\WINDOWS\Sonysys\VAIO Recovery\PartSeal.exe"
O4 - HKLM\..\Run: [Trend Micro AntiVirus 2007] "C:\Program Files\Trend Micro\AntiVirus 2007\tavui.exe" -1 --delay 200
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\j2re1.4.2_01\bin\jusched.exe"
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [HPDJ Taskbar Utility] C:\WINDOWS\System32\spool\drivers\w32x86\3\hpztsb10.exe
O4 - HKLM\..\Run: [HP Software Update] "C:\Program Files\Hewlett-Packard\HP Software Update\HPWuSchd2.exe"
O4 - HKLM\..\Run: [HP Component Manager] "C:\Program Files\HP\hpcoretech\hpcmpmgr.exe"
O4 - HKLM\..\Run: [HKSERV.EXE] "C:\Program Files\Sony\HotKey Utility\HKserv.exe"
O4 - HKLM\..\Run: [ATIPTA] "C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe"
O4 - HKLM\..\Run: [ATIModeChange] Ati2mdxx.exe
O4 - HKLM\..\Run: [Apoint] "C:\Program Files\Apoint\Apoint.exe"
O4 - HKLM\..\Run: [AOLDialer] "C:\Program Files\Common Files\AOL\ACS\AOLDial.exe"
O4 - HKLM\..\Run: [AOL Spyware Protection] "C:\PROGRA~1\COMMON~1\AOL\AOLSPY~1\AOLSP Scheduler.exe"
O4 - HKLM\..\Run: [SpySweeper] "C:\Program Files\Webroot\Spy Sweeper\SpySweeperUI.exe" /startintray
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [Yahoo! Pager] "C:\Program Files\Yahoo!\Messenger\ypager.exe" -quiet
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - Startup: Check for TWS Updates.lnk = C:\Jts\WiseUpdt.exe
O4 - Global Startup: MRI_DISABLED
O4 - Global Startup: WPM Monitor.LNK = C:\Program Files\WPM_Monitor\WPMMonitor.exe
O8 - Extra context menu item: &AOL Toolbar search - res://C:\Program Files\AOL Toolbar\toolbar.dll/SEARCH.HTML
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\WINDOWS\System32\msjava.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\WINDOWS\System32\msjava.dll
O9 - Extra button: Yahoo! Login - {2499216C-4BA5-11D5-BD9C-000103C116D5} - C:\Program Files\Yahoo!\Common\ylogin.dll
O9 - Extra 'Tools' menuitem: Yahoo! Login - {2499216C-4BA5-11D5-BD9C-000103C116D5} - C:\Program Files\Yahoo!\Common\ylogin.dll
O9 - Extra button: Messenger - {4528BBE0-4E08-11D5-AD55-00010333D0AD} - C:\Program Files\Yahoo!\Companion\Modules\messmod2\v4\yhexbmes.dll
O9 - Extra 'Tools' menuitem: Yahoo! Messenger - {4528BBE0-4E08-11D5-AD55-00010333D0AD} - C:\Program Files\Yahoo!\Companion\Modules\messmod2\v4\yhexbmes.dll
O9 - Extra button: AOL Toolbar - {4982D40A-C53B-4615-B15B-B5B5E98D167C} - C:\Program Files\AOL Toolbar\toolbar.dll (file missing)
O9 - Extra 'Tools' menuitem: AOL Toolbar - {4982D40A-C53B-4615-B15B-B5B5E98D167C} - C:\Program Files\AOL Toolbar\toolbar.dll (file missing)
O9 - Extra button: MoneySide - {E023F504-0C5A-4750-A1E7-A9046DEA8A21} - C:\Program Files\Microsoft Money\System\mnyside.dll
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O14 - IERESET.INF: START_PAGE_URL=http://www.sony.com/vaiopeople
O16 - DPF: {A17E30C4-A9BA-11D4-8673-60DB54C10000} (YahooYMailTo Class) - c:\program files\yahoo!\installs\ymmapi.dll
O23 - Service: AOL Connectivity Service (AOL ACS) - America Online, Inc. - C:\PROGRA~1\COMMON~1\AOL\ACS\AOLacsd.exe
O23 - Service: Ati HotKey Poller - Unknown owner - C:\WINDOWS\System32\Ati2evxx.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: NICSer_WPC54G - Unknown owner - C:\Program Files\Linksys\Wireless-G Notebook Adapter\NICServ.exe
O23 - Service: Sony SPTI Service (SPTISRV) - Sony Corporation - C:\PROGRA~1\COMMON~1\SONYSH~1\AVLib\Sptisrv.exe
O23 - Service: Trend Micro AntiVirus Protection Service (tavsvc) - Trend Micro Inc. - C:\Program Files\Trend Micro\AntiVirus 2007\tavsvc.exe
O23 - Service: Trend Micro Proxy Service (tmproxy) - Trend Micro Inc. - C:\Program Files\Trend Micro\AntiVirus 2007\Components\tmproxy.exe
O23 - Service: VAIO Media Music Server (VAIOMediaPlatform-MusicServer-AppServer) - Sony Corporation - C:\Program Files\Sony\VAIO Media Music Server\SSSvr.exe
O23 - Service: VAIO Media Music Server (HTTP) (VAIOMediaPlatform-MusicServer-HTTP) - Sony Corporation - C:\Program Files\Common Files\Sony Shared\VAIO Media Platform\sv_httpd.exe
O23 - Service: VAIO Media Music Server (UPnP) (VAIOMediaPlatform-MusicServer-UPnP) - Sony Corporation - C:\Program Files\Common Files\Sony Shared\VAIO Media Platform\UPnPFramework.exe
O23 - Service: VAIO Media Photo Server (VAIOMediaPlatform-PhotoServer-AppServer) - Sony Corporation - C:\Program Files\Sony\Photo Server\appsrv\PhotoAppSrv.exe
O23 - Service: VAIO Media Photo Server (HTTP) (VAIOMediaPlatform-PhotoServer-HTTP) - Sony Corporation - C:\Program Files\Common Files\Sony Shared\VAIO Media Platform\SV_Httpd.exe
O23 - Service: VAIO Media Photo Server (UPnP) (VAIOMediaPlatform-PhotoServer-UPnP) - Sony Corporation - C:\Program Files\Common Files\Sony Shared\VAIO Media Platform\UPnPFramework.exe
O23 - Service: Webroot Spy Sweeper Engine (WebrootSpySweeperService) - Webroot Software, Inc. - C:\Program Files\Webroot\Spy Sweeper\SpySweeper.exe

--
End of file - 9051 bytes

As you see, I did the log thing. Also your latest recommendation After the first command, when you are asking what it says, it says:
Server: cns.chelmsfdrdc2.ma.boston.comcast.net
Address: 68.87.71.230
Non-authoritative answer: Name: www-real.wa1.b.yahoo.com
Address: 69.147.76.15
Aliases: www.yahoo.com, www.wa1.nb.yahoo.com
When I typed Server 192.168.1.1 I got:
Default server ...... (same as above, same numbers)
Non-authoritative answer: same sequence as above

"ping request could not find host www.yahoo.com. Please check the name and try again.

The laptop (PC with the problem) shows IP address: 192.168.1.107 DEfault gateway: 192.168.1.1
DNS servers: 68.87.71.230 and 68.87.73.246 DHCP Server: 192.168.1.1

For the computer that I am connected to the internet, I need other instructions since it is not a PC, it is a Mac.

OK, I figured out some of the info on my Mac (but not all)

IP address: 192.168.1.103
DNS server: 68.87.71.230.68.87.73.246
Router: 192.168.1.1
Subnet mask: 255.255.255.0

One other thing: recently, all computers in the house, so my desktop Mac plus my daughters' MacBooks are acting out. All of a sudden, the internet stops. Although it shows that connection is ON. Sometimes I have to shut everything off and reboot and then maybe a few times more, again and again until the internet comes back on. In the case of the PC in question, the internet does NOT come back, no matter what. I am wondering if we need another cable modem, router, whatever. Ideas?

It took quite a long time to install everything and there was a message that not all components were updated and there may be some problems but HOORAY, I could get onto the internet. HIgh Five! Persistence pays!