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internet working intermittently

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  • 06-10-2013 9:44pm
    #1
    johnty56
    Registered Users Posts: 822 ✭✭✭


    As the title suggests google chrome is only working on and off on my laptop. When it isnt working i can see 'resolving host' on the bottom left of the screen. I'm really not a techie and this is driving me mad!

    Anyone know how to fix this... Havent changed anything on it and turning on off does no good....


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    #2
    ZENER
    Registered Users Posts: 6,163 ✭✭✭ZENER


    Might be a DNS issue. Try changing your DNS server address to 8.8.8.8 or 8.8.4.4.

    Also try entering into a command line:

    ipconfig /flushdns

    Any chance you might have a Virus or some form of Malware which might have caused DNS Poisoning ? When it does eventually resolve a host is it the destination you were expecting ? For example if you type www.google.com into the URL bar do you end up somewhere else ?

    Does it affect Internet Explorer ?

    Ken


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    #3
    johnty56
    Registered Users Posts: 822 ✭✭✭johnty56


    ZENER wrote: »
    Might be a DNS issue. Try changing your DNS server address to 8.8.8.8 or 8.8.4.4.

    Also try entering into a command line:

    ipconfig /flushdns

    Any chance you might have a Virus or some form of Malware which might have caused DNS Poisoning ? When it does eventually resolve a host is it the
    destination you were expecting ? For example if you type www.google.com into the URL bar do you end up somewhere else ?

    Does it affect Internet Explorer ?

    Ken

    Hi ken...thanks for your reply!
    It affects explorer too.. The times it does work it goes to the correct address


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    #4
    ZENER
    Registered Users Posts: 6,163 ✭✭✭ZENER


    Is your Connection on the computer - Laptop or PC - set to DHCP ? Check that it is.

    Have you got a Proxy server entry in your browsers ? Is it a home or office laptop/computer ?

    Also check your Hosts file -

    C:\windows\system32\drivers\etc\hosts (assuming Windows 7)

    Most entries should be commented out - they should have a "#" at the start of the line except maybe the 127.0.0.1 entry - if there are any other entries post them here.

    Try pinging at the command line and see how long it takes. Eg :

    ping www.google.ie

    You should get a reply like this:

    ping www.google.ie

    PING www.google.ie (74.125.24.94): 56 data bytes
    64 bytes from 74.125.24.94: icmp_seq=0 ttl=51 time=48.870 ms
    64 bytes from 74.125.24.94: icmp_seq=1 ttl=51 time=47.643 ms
    64 bytes from 74.125.24.94: icmp_seq=2 ttl=51 time=56.060 ms

    If it takes a while to resolve the IP address and ping and you've checked the above it might be your ISP or your router. Difficult without seeing it, have you installed a new firewall or AV software recently ?

    Ken


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