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wireless troubleshooting

Posted on 2014-11-25
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Last Modified: 2014-12-19
My laptop has a wireless signal but I cannot access any website. I can ping 4.2.2.2 but the ping time is around 150ms. When I plugged my laptop straight into Verizon router, I cannot access the Internet without any problem. How do I troubleshoot my wireless? I already reset my router several times. Thanks
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Question by:leblanc
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by:Michael74
ID: 40466117
One place you can start is to install Wifi Analyzer on your phone to check for interference on the channel

https://play.google.com/store/apps/details?id=com.farproc.wifi.analyzer&hl=en
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by:Michael74
ID: 40466118
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by:Michael74
ID: 40466122
Here are some other thoughts

What type of Wifi are you using 802.11 a/b/g/n If you are connecting with "a" then it will be slow

How strong does Windows report the signal strength?

You wifi router could be malfunctioning. How old is it? Has the firmware been upgraded?

Are you using the most recent driver for your network card. Ensure that this driver is up to date
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by:leblanc
ID: 40466756
I have  a very good signal. I have 4 laptops and this one is the only one that cannot access the Internet via wireless.
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Bryant Schaper earned 500 total points
ID: 40467292
Compare IPConfigs as well, sounds like DNS or firewall from wireless to internet.

What model of device
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Author Comment

by:leblanc
ID: 40467537
Yes DNS is the issue. It is set to 4.2.2.2. When I removed it to set it whatever the router gave it. It works fine. I don't understand why 4.2.2.2 did not work. It is a valid DNS server. Thanks
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by:Bryant Schaper
ID: 40477153
firewall blocking or ISP?  Can you ping or nslookup and use 4.2.2.2 as the server.  ie nslookup then server 4.2.2.2
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by:leblanc
ID: 40477665
I can ping the server and my other laptop is using 4.2.2.2
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Expert Comment

by:Bryant Schaper
ID: 40481500
How about while on wifi or was that on Wifi?

Could the wifi router not be forwarding DNS requests for wifi clients?  How makes the AP
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