Both IE and Chrome Losing Connectively


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?

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.
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 :)

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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
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
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.
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.
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.
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?
What antivirus are you using, and have you checked proxy settings? Those are two things that I would check first.
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