Internet DNS issues causing MASSIVE slowdowns

Hi, up until around a day or two ago, my internet and computer were working fine, but lately, it's completely gone to hell in the internet department. (I'm actually surprised I barely managed to type all of this and submit it as a thread)

The pages barely ever load, when they do, they either take up to a full minute, or load with text/links only (no images or formatting).

When they fail, however, like they usually do, they end up with the following error: http://i455.photobucket.com/albums/q...shi041/DNS.png

I don't know what is causing it. I have followed the instructions there, and they didn't help. I also tried changing the DNS on my machine to the Google DNS, and that didn't work. I also tried a few other things with the command line, like flushing and re-registering the DNS, but that didn't work either...

I'm almost at the end of my rope here.. If anyone could help me, please do!

Let me know if you need any logs or any info about my setup..

For now, I can say:

ISP: Shaw
Connection: Wireless to Router
Computer: HP ENVY 17 3D 3000

 

Are you using an aftermarket router or the ISP's own branded router? Assuming the router connects to the Internet fine, under Windows your DNS settings should be linked to the modem router default gateway, so if your router IP address is for example 192.168.0.1 then that would be your Default Gateway and Preferred DNS address.

But to make sure go to Command Prompt (type "cmd" in the search bar) and type in "ipconfig /all" to see a list of network device info, under your wireless adaptor check the IP Address and Default Gateway to make sure its correct. If it some how fails to register properly then try manually input the IP settings into the wireless adapter, under Windows 7 right click on the wireless bar icon then click on Network and Sharing Center. On the left choose Change Adapter Settings, and then right click on your Wireless Adaptor and choose Properties.

Double click on the Internet Protocol v4 and manually enter the IP settings, so for IP Address choose a random number within range of the router (so if the router address is 192.168.0.1, the range for the last section where the 1 is would be between 2-254), then subnet mask should be 255.255.255.0 and the Default Gateway is the number of your router address (i.e. 192.168.0.1). For preferred DNS, use the same as Default Gateway address, just ignore the Alternate DNS. Then save and confirm and check to see if it connects properly to the internet without dropping out.

 

I am using the ISP's router they gave us.

What you told me to do didn't help, as far as I know, I carried out all of the steps correctly...

 

Screenshot doesnt work

can you /ping www,google.com?

 

I've seen behaviour like this before, contact your internet provider and request a new modem.

Your modem is either dying or your ISP is doing maintenance and phasing out older models of modems without telling you beforehand. A new modem fixed the problem for me.

 

I have tried:

Resetting the Router.
Power-cycling the Router.
Connecting through Ethernet Cable.
Using Different Browsers.
Using nslookup in cmd.
Using other prescribed methods with cmd.
Changing the DNS server to an open/google DNS server.

None of these have alleviated the issue... We also JUST got this new router a few weeks back, and it worked fine until now. It STILL works fine for the other 3 computers in the house.

I have, however, found that when I start the computer in safe-mde with Networking, it connects fine and pages load properly - is it possible it's a driver issue?

If so, what's the quickest way to find out which driver or program is causing this? If it's not a program, how do I fix it...? I really just want to get this done and over with - my computer worked fine until this happened...

 

Go into the Resource Monitor (search Resource Monitor in the Start Search), then go to the network tab and see what all has it's hands in your network connections... these will process names, ID's, and total bandwidth consumed.

 

You might have been infected with the DNSchanger malware and its trying to contact the rogue DNS servers that the FBI recently shut down.

Go this website to check: DNS Changer Malware Eye Chart

Another thing you should check is your HOSTS file. Clear it out or use the MVPS hosts file.

 

or he might be infected with a bot that is flooding some server somewhere leaving no bandwitdh for normal surfing

 

It seems to be only at this one house, because at both College and my other house, but here it is messed up..

While it works fine with the other computers, it is barely working with this computer, always showing DNS errors and "cannot find" errors.

Knowing all of these facts, what can I do to fix them? Is it the router? Even though the other computers are working fine?

 

Can you download a Linux LiveCD, boot from that, and see if you can get on the internet normally? Ubuntu is (relatively) easy to use, and has Firefox built in. If this works, that pegs it down to an OS issue or virus.