SG Broadband Community

Maybe online checker or something like that?

Look here for example http://www.sophos.com/en-us/products/fr ... -tool.aspx

Can you tell us more details? What platform do you use?

I had a similar situation. It turned out that my friend decided to do something to improve in my PC.
This is what I was informed only at the service center. It seems that he something broke in bios