stupid NIC behaviour!

There is really not much else you can do other than making sure you have the lastest driver, and the ports and cables are working fine. Not sure if this will do any good but if you want, you can re-install the OS, or a different one and see if it's the software that's causing it or your actualy hardware.

Is the NIC on-board with the motherboard? Sometimes I have discovered that on-board NIC just go screwy sometimes. I have had much better success when I just install a NIC PCI adapter in one of the PCI slot. Seems to work better that way. Two on-board NIC I've had problems with are Intel and nVidia. Realtek has never given me a problem in an on-board setup.

Since it's a new computer, probably from one of the major makers like: HP, DELL, Gateway, Lenovo, etc. That means it LOADED with "bloatware", stuff they cram on there (paid for by the software vendors) to reduce the price of the computer.

The majority of people don't need all that stuff, plus it WILL slow your PC down, sometimes considerably.

I suggest you download a free program called: PC Decrapifier

Here's some info on what it does:

How it Works

Simply download the file and run the EXE. There is no installer. If you have anti-virus software installed, it may complain about this program because it is written with a scripting language. These warnings can be safely ignored. Please see the FAQ for more details.
Running the Program

After you run the EXE you will be guided through the process with a "wizard" style series of questions. You will have the choice to pick and choose what you want to remove. It will not begin removing anything without prompting you first!
Click the images below to see a screen shot of various parts of the process.

Welcome

Create a Restore Point

Select Items



I have used this numerous times when repairing new PCs that have gone weird in a few day after purchase.