No Internet Access..

Hey Guys,

I have a Macbook Pro Retina 2012 with OSX 10.9.3, and im having a weird issue. My laptop connects to the WiFi and i can ping websites, but in my browser I cannot access the Inet. When i take it home and connect to my Wifi there, it works flawlessly.

What could be causing this problem?
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Cobra25Asked:
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jhyieslaCommented:
Is it just failing at work?  If so, is there some proxy server that you have to authenticate through first? If it works fine at home,  you at least know that the Mac side of things is basically OK?
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Cobra25Author Commented:
I have a Linksys WRT120N at work.

Nope its a straightfoward setup at work - no proxy or anything.
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jhyieslaCommented:
Can you access the Internet from other computers connected wirelessly?  If you can ping things, you should also be able to get to them, unless there's something filtering port 80/443 traffic.  

Check your network settings while at work to make sure you don't have two connections to two different networks.

Other troubleshooting, although it real doesn't make sense is to remove and re-add the WiFi on the Mac and reboot the router.
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tmoore1962Commented:
Are you shutting the mac book down or just letting it go to sleep?  I am guessing the two networks share the same IP addressing and the mac book has the info from your home network.  
I. Force reconfiguration of IP settings

 Either restart your computer or follow these steps:
1. Close any open Internet applications (such as Web browsers and email). Be sure to save any changes to any open documents.
 2. Choose System Preferences from the Apple menu.
 3. Choose Network from the View menu.
 4. Choose Active Network Ports from the Show menu.
 5. Deselect the "on" checkbox for port you use to connect to the Internet (such as Built-in Ethernet or AirPort).
 6. Click Apply Now.
 7. Reselect the checkbox for the port.
 8. Click Apply Now.
 9. Open a Web browser, and attempt to connect.
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Cobra25Author Commented:
I shut it down.

I checked the ip schemes and they are different networks.
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Cobra25Author Commented:
Could be it something on this wireless router i should check?
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Cobra25Author Commented:
So  i bought a new Linksys and Netgear router, and i have the same issue.

When i connect to the Wifi Tether it works fine. This is so weird any thoughts??
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jhyieslaCommented:
Check in the Network Preferences to make sure that only one network connection is active. That connection should be your wireless router. Then click on that connection and make sure that you have DNS server(s) set as well as a search domain. And make sure not only that they are set, but that they make sense. If you're using some internal DNS, try substituting the DNS servers for a service like OpenDNS (208.67.222.222 and 208.67.220.220). I do realize that most of these suggestions make no sense since you are apparently able to ping websites, but give them a look anyway.

Also, can other devices get to the Internet using this wireless connection?  If you can't get their with other devices, and you've just changed out your router, then there's something amiss between the router and the outside. If pinging works, then it's most likely some filtering or firewall blocking coming into play. And yes I know you commented above that it's a straightforward setup, but sometimes we forget something we did or someone else changed something we don't know about.
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Cobra25Author Commented:
I had to basically reset all of the network settings such as a new location and it started working. Looks like something got corrupted there.
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