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Windows 7: Laptop connects to wireless router but with no internet access

19 Aug 2012   #31
Nick F

Windows 7 Home Premium 64 bit
 
 

After a full system scan (+ the scannow command) my computer seems to have a clean bill of health, where I go from here I don't know.

Anyone got any thoughts?

Edit: Hang in there Melissa we will get this sorted!


My System SpecsSystem Spec
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19 Aug 2012   #32
Nick F

Windows 7 Home Premium 64 bit
 
 

Ok the plot thickens. I restarted my laptop and turned off and restarted my router. After several minutes I tried to connect to the network and was greeted with this message:


Windows has detected an IP address conflict

Another computer on this network has the same IP address as this computer. Contact your network administrator for help resolving the issue. More details are available in the Windows System event log.


Thoughts?

UPDATE: Restarted my laptop again and its said no such thing so I don't know what to think.
My System SpecsSystem Spec
19 Aug 2012   #33
Nick F

Windows 7 Home Premium 64 bit
 
 

Ran a "Manual Diagnostics Tool"

Ping Test Failed No Response:default gateway. DCHP server
My System SpecsSystem Spec
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19 Aug 2012   #34
chev65

Windows 7 Ult, Windows 8.1 Pro,
 
 

Quote   Quote: Originally Posted by Nick F View Post
Ran a "Manual Diagnostics Tool"

Ping Test Failed No Response:default gateway. DCHP server
If you did an actual reset on the router you will need to go into the routers wireless set up page and reconfigure the wireless settings with the security and encryption I mentioned earlier. Might have to redo the SSID and password also.

If you haven't performed a full reset of the router by pushing and holding down the reset button for 30 seconds you should do that now.

Be sure to go into the Windows Wireless Manager and make sure the settings being used in the router are the same ones you used for the wireless profile.

As for the IP conflict, do any of the machines in your network use a static IP? If so you need to use an IP that is outside the DHCP range that the router is using, this will avoid the IP conflict problem.

It might be worth pointing out that just about any A/V software can and will cause connection problems and do so on a regular basis.
My System SpecsSystem Spec
20 Aug 2012   #35
Nick F

Windows 7 Home Premium 64 bit
 
 

Quote   Quote: Originally Posted by chev65 View Post
Quote   Quote: Originally Posted by Nick F View Post
Ran a "Manual Diagnostics Tool"

Ping Test Failed No Response:default gateway. DCHP server
If you did an actual reset on the router you will need to go into the routers wireless set up page and reconfigure the wireless settings with the security and encryption I mentioned earlier. Might have to redo the SSID and password also.

If you haven't performed a full reset of the router by pushing and holding down the reset button for 30 seconds you should do that now.

Be sure to go into the Windows Wireless Manager and make sure the settings being used in the router are the same ones you used for the wireless profile.

As for the IP conflict, do any of the machines in your network use a static IP? If so you need to use an IP that is outside the DHCP range that the router is using, this will avoid the IP conflict problem.

It might be worth pointing out that just about any A/V software can and will cause connection problems and do so on a regular basis.

SUCCESS!

With your advice in mind, I continued to research my problem online and found out that a recent update (released Saturday I believe) for McAfee has been causing users a lot of problems, most of which could no longer access the internet.

At first I wasn't convinced however I started up my laptop, switched to safe mode and low and behold my connection was fine. At this point I was convinced the recent McAfee update was the problem and blocking my internet access.

I uninstalled the program and bingo, I'm back online!

Most Dell laptops come pre-installed with McAfee so if anyone else is experiencing the same problem, check it out, it could be a simple solution for you.

Thanks Chev I really appreciate all your help.
My System SpecsSystem Spec
20 Aug 2012   #36
chev65

Windows 7 Ult, Windows 8.1 Pro,
 
 

Good deal Nick. I'll be watching out for systems with McAfee or AVG or Norton or Avast, all of which I've seen cause connection problems.

Solved twice now, funny how the same problem has different solutions.
My System SpecsSystem Spec
25 Aug 2012   #37
brooks85

windows 7 64 bit
 
 

omg I just want to suplex mcafee right now.

I had exact same problem and sure enough it was mcafee. Here is my question tho for nick.

By any chance, was your mcafee subscription about to expire?

I just find it odd that after never having this issue ever on this dell laptop that I bought last year; all of the sudden it blocks my internet access and just so happens my subscription to mcafee expired in 3 days.
My System SpecsSystem Spec
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 Laptop connects to wireless router but with no internet access




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