Both IE and Chrome Losing Connectively

Hi,

One of the laptops (win7) in a branch office of 5 staff suddenly has issues browsing in both IE 10 and Chrome. The "Page cannot be displayed message". Computer does not lose internet connectivity though as I can remote in to it via. LogMeIn as these problems occur.

Chrome might work for a bit but then no go. Same with IE. I guess must be a DNS issue? I don't know what else it could be. The other PCs in the office have no issues so it can't be Router or Modem as there is outside connectivity.

I've re-started the laptop as well as network router and cable modem.

Any ideas anyone?

Steve
shood4012IT ManagerAsked:
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Chris KonickiSecurity EngineerCommented:
Hi there,


I'm assuming you've corrected any erroneous proxy settings? does another laptop in the area behave the same way? External inbound traffic being accepted doesn't necessarily mean its a local issue, though all signs do point to that. You need to run a port test and make sure 443 and 8080 outbound are open (though they should be). Have you tried the laptop on another external network?
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JohnBusiness Consultant (Owner)Commented:
One of the laptops ...

Try TCP/IP Reset

Open cmd.exe with Run as Administrator
Then  netsh int ip reset c:\resetlog.txt
Also, ipconfig /flushdns followed by net stop dnscache followed by net start dnscache
Then restart the computer

If no, make a new, test, Windows User Profile (Account). Log into the new Windows Account and test connectivity in the new account.
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shood4012IT ManagerAuthor Commented:
Hi John,

Thank you much for these recommendations! I performed each step as suggested right down to new user account and unfortunately the issues persist. The laptop is definitely networked, I have a steady connection to it as I am remotely connected doing the troubleshooting. I am baffled. All the other computers in this office have no internet browser problems, just this on.

Oh my :)

Steve
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JohnBusiness Consultant (Owner)Commented:
On the problem laptop, try running System File Checker.

Open cmd.exe with Run as Administrator and run SFC /SCANNOW twice. Close out, shut down, start up and test.

If SFC does not work AND a new Windows Profile does not work, then you may need to back up the computer, format and reinstall Windows
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shood4012IT ManagerAuthor Commented:
Thank you John am trying that now (46% on first run as I send this). Question though, why run SFC twice? Just asking. Cheers, Steve
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JohnBusiness Consultant (Owner)Commented:
SFC is not a perfect repair and I have learned from experience a second run will sometime fix what the first misses. No harm to run twice so that is why I always suggest it.
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shood4012IT ManagerAuthor Commented:
I hear you John. Just like the foolish "Windows based System Restore" on a Windows 7 PC almost always fails.. at least in my in my experience having run the utility numerous times on many workstations.
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JohnBusiness Consultant (Owner)Commented:
People do screwy things with computers. My colleague and I have a (very short) list of users who abuse their computers. For the most part, our clients are responsible.
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William FulksSystems Analyst & WebmasterCommented:
Are you running any kind of ad blocking software? I have seen that "page cannot be displayed" issue come up when the browser tries redirecting to ad sites or full screen advertisements. What sites is it happening on?
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masnrockCommented:
What antivirus are you using, and have you checked proxy settings? Those are two things that I would check first.
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