I while ago I had met a strange issue.
I noticed that facebook is not loading in browser if accessed at work. We do not filter facebook, so, for this reason, the issue was more odd.
I could not find anything in our DNS, it returning correct results.
So, I gave up and stop using facebook. Until I have opened it accidentally while surfing over the wireless connection. Over wireless it was working.
In this conditions I got more interested in this issue. It was clear for me that the cause was on the laptop I am using. So, I have reinstalled the drivers. No luck.
After some days, I realized that I have updated the wired network driver via Windows Updates. I went to the installed updates, uninstall the new version of the driver and… facebook WORKED!
Here is the culprit (winqual link is not working):
Realtek – Network – Realtek PCIe GBE Family Controller
Download size: 272 KB
You may need to restart your computer for this update to take effect.
Update type: Optional
Realtek Network software update released in June, 2011
Help and Support:
It seems that winqual.microsoft.com was replaced with sysdev.microsoft.com.