[SOLVED] Internet stops working for everyone when I connect my to the router...

[Cactws]

There has been 4 days this is happening. Internet works fine on every other device when my computer is shut down or not connected to the router via cable. But the moment I connect it, the internet simply stops working, on the PC, on my cellphone and everyone else's in the house. What is going on?

My ISP's technician came here early today and replaced the line filter, told me to call him if the problem continues so he can come back and replace the router.
Maybe he's coming tomorrow but I really don't think it's a faulty router because...

• Tried to connect my pc to the router using another RJ45 cable (three different ones).
• Tried using another port on the router
• Tried connecting another PC using the same cables (internet works fine)

And here's my mindf*cker:
- I tried tethering my phone to the PC via USB to try and use internet on it via the phone's wifi and the internet stops working!!!

I really don't know what is going on, it couldn't be my NIC card, right? Because even through USB tethering it makes the internet stop.
I'll post an update as soon as the technician replaces the router.
Please help me figure out.

 

[Ralston18]

I would lean towards an IP address conflict...

On your computer run and post the results of "ipconfig /all" (without quotes) via the command prompt.

Likewise run and post the results of "arp -a" via the Command Prompt.

Make and model router? Who has full admin rights to the router?

 

[SamirD]

Let's see if your system connects fine if it's not running windows--boot up a linux live cd/usb and then connect your system and see if the network drops.