I have never have any problem with VGC before, and there is no explanation on it, it's just refuse to connect with normal ip.
Same here until 2 months ago. Sinc then it does so on every website I open first
The Nintendo eShop rating Thread: http://gamrconnect.vgchartz.com/thread.php?id=237454
The Steam/GOG key gifting thread: https://gamrconnect.vgchartz.com/thread/242024/the-steamgog-key-gifting-thread/1/