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Can an ISP be hijacked?

By Emmaarkay ·
I am having a HP laptop Intel Pentium 4 with Windows XP. I have subscribed to Verizon DSL. Since five days I am unable to go online and work with my emails and other web resources.

I have had a long phone sessions with Verizon Support, for over 4 hours; but they could not resolve the issue. They blamed that my Browser would have become bad. I use IE 6 or Mozilla 7.
They suggested that I talk to the Hardawre vendor.All other applications in my laptop work, including either of the browsers offline.

Adding to this I could even go online with other open wireless networks in the range. This clearly indicates that my browsers are not at fault and that I am unable to get online with Verizon DSL.

Is it possible that any virus can hijack an ISP?

If so what are the remedies?

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Answers

by BFilmFan In reply to Can an ISP be hijacked?

Yes a virus could crash an ISP.

Sounds as if you are in a dead cell or Verizon is having an issue.

Get a new ISP is my advice.

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Thank you

by Emmaarkay In reply to Answers

Thank you for the suggstion.

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Test using ethereal or by booting CDROM Live Linux OS

by stress junkie In reply to Can an ISP be hijacked?

The very first thing you should do is to make sure that your cables are connected and that your DSL modem is turned on. I'm not joking. This is the first level of troubleshooting and it OFTEN fixes the problem.

If the cables are connected and the modem power is on then look for the indicator lights on the modem. Consult your user manual to figure out what the lights mean.

When you are sure that the modem has power and is properly connected to the network wiring then you can start looking for OS problems. First try to connect to a site that you know exists such as yahoo.com or google.com. If that doesn't work then you may have a configuration problem. There is a good chance that your firewall is stopping network traffic. If that's not a problem then something else is a problem. You can test this by using a network packet sniffer while running Windows and/or by using completely different operating system that is booted from CD-ROM. Here is how to do both of those.

If you can get to another computer with a CD-RW or DVD-RW writer then you have a couple of options. Download the Windows version of Ethereal from www.ethereal.com. It's free. Write it onto a CDROM. Install it on your computer. Set it to capture network traffic while you try to connect to some network site. Then stop Ethereal from capturing and look at the network packets. You'd be surprised how self explanatory they can be.

Or download a bootable Linux image. Burn the ISO image to a CD-RW or DVD-RW. Use that to boot your computer. The live Linux will pick up your network settings during boot. Then just use a web browser that comes with the Linux OS to see if you can connect to the network.

Now if NONE of those things worked then you may have a problem with your Verizon service. I'm sure that they will send a technician out to your house at your cost if they find that the problem is your fault.

And PLEASE don't post the same thing 3 times, even if it is in different categories.

Thanks. :-)

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Thanks for the tip!

by Emmaarkay In reply to Test using ethereal or by ...

Thank you for the tip. I posted the message only after ensuring that my DSL modem was connected properly and the cables were securely connected.

However I did not know the Linux image route. I did contact Verizon phone support and even after four hours of trying to fix, they could not resolve and suggested that I contacted the H/W vendor. I contact the HP support and after an hour of trials they said the problem should be with the ISP and not in their PC.!

Abandoned by the ISP as well as HP, I had to try all the other possible routes, including trying to use my neighbor's ISP. My internet connection worked with my neighbor's ISP. Once again I tried with another ISP of a different friend of mine. The internet connections came up.

This clearl prroved that the fault is with the ISP and in this case it is Verizon DSL.

After elaborate attempts this morning I could figure out the problem with the DSL from Verizon: It looks that the allocation of IP through DHCP has been the villain, since it is not liked by some 'News' sites including MSNBC.

I had to elaborately go through the Registry entries and troubleshoot a number of keys that automaically get into the Registry. I was indeed very nervous and not sure whether I would succeed. A couple of harmful adwares were found to have hijacked my ISP connection which were otherwise to have been taken care at the ISP level.

Thanks to the efforts, I just could get back onto the web and I hope I will not face the problem again.

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I'm glad the problem is fixed

by stress junkie In reply to Thanks for the tip!

It's funny that the problem wasn't any of the things that I mentioned. I was trying to briefly cover all of the possibilities. I'm just glad that the computer is working.

Cheers.

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