Strange Network Problem

  hhhhgggg2 06 Apr 11
Locked

Hey,

I like to think of my self as pretty good with computers, but this one has baffled me.

Basically, since last night, I have been experiencing pretty slow page loading, no matter what browser I use, Firefox, Chrome, Safari, IE8.

But in addition, about every 5-10 pages I get an "Oops this website is unavailable." Things along those lines.

I have ran a full virus scan, with no results, however, the problem is also happening on my brother's mac, so I can't see it being a virus that has spread itself on to a different OS via the network.

I have not changed any network settings for a while, so I don't think it's the network.

I am running Windows 7 64bit.

Running a speedtest (speedtest.net) tells me I am getting the usual 5mbps.

Thanks for helping,

NB: I think it could be a DNS problem, I have done a DNS cache flush, and still no improvement.

  Thalmus 06 Apr 11

Have you rebooted your router? (this may seem obvious but some people forget to do this)
Have you contacted your ISP to see if there are network issues? (You may have the correct download speed but this doesn't reflect latency issues)
If you believe its a DNS issue have you tried changing your primary dns server to another? (You can use googles public dns server 8.8.8.8)
Do you update your hosts file? If this gets too big it can cause network issues
Have you tried only having one computer on the network at a time to see if one of the machines is flooding the network?
How are you connecting? Wireless or wired? If it wireless try using a wired connection and see if improves things

  hhhhgggg2 06 Apr 11

I had tried most of the things you said,

I couldn't connect to anything at all under google's DNS server.

It's not my hosts file.

I pinged google, and had 75% packet loss and 1s latency sometimes, so there is definitely problems with the ISP's line.

Thanks for your help, I'll be calling Talk Talk soon.

  hhhhgggg2 06 Apr 11

I had tried most of the things you said,

I couldn't connect to anything at all under google's DNS server.

It's not my hosts file.

I pinged google, and had 75% packet loss and 1s latency sometimes, so there is definitely problems with the ISP's line.

Thanks for your help, I'll be calling Talk Talk soon.

  hhhhgggg2 06 Apr 11

I had tried most of the things you said,

I couldn't connect to anything at all under google's DNS server.

It's not my hosts file.

I pinged google, and had 75% packet loss and 1s latency sometimes, so there is definitely problems with the ISP's line.

Thanks for your help, I'll be calling Talk Talk soon.

  Thalmus 06 Apr 11

Have you plugged in a telephone somewhere in your house that hasn't got a micro-filter on it?

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