DNS Server Problems?

[xYuuki]

Okay, I have a problem with the internet and I need help solving it because it's causing me a headache and I don't know what's wrong! >.<

First, I have a 6 years old modem, and a linksys router. So, a few months back this problem keeps happening on and off.

Sometimes when I connect to the internet via wireless/local host connection, they said that I can't connect to the internet because they cannot connect to the Primary DNS Server.

After resetting the router for a few times, I can connect to the internet, until when I off the router. The next time I turn on my router, sometimes no problems are faced, while sometimes the same problem happens again...

Is there a problem with my router, or is it because of my modem, or is it the Internet Service Provider?

My computer OS is Windows Vista Home, is it because of the TCP scaling thingy?

I know nothing about techy stuffs so please help me >.<

[daniyagami]

I had a similar problem, it was the modem. I called my ISP provider (who also is responsible for my modem, I use a external modem) and they changed my modem for a new one and the problem was solved. My old modem was only 4 years old. I'm guessing your modem is dying due old age.

[xYuuki]

My router is also about 4 years old, so I'm confused whether it's the router or the modem's fault.

[Munemasa Katagiri]

It's more like your modem. Do you own it or is it from the ISP? If it's from the ISP I suggest you to call them to change it. If it's yours I suggest you to try to update its firmware. I used a modem from a ISP for many years w/o any problems but, who knows?
If your problem persists, update your router's firmware as well.