I have recently installed a new router (DLink Dir-615) and it seems that certain sites will not render for me. They simply show up as blank pages, or they will attempt to load, flash a few times and end in a the site cannot be reached. However, if I am running Fiddler, all of the sites work. The issue also occurs with various components on certain sites, i.e., video. The videos either do not play or will continuously skip to the next clip when Fiddler is not running.

I am completely baffled as to why this is happening and is there some setting on my new router that I need to enable?

Thanks in advance.

Could you do a ipconfig/all and post it please. Also, try to ping your default gateway, a website, and the websites ip addr and post all this information please.