As you can see from the title, I have narrowed down to my router that it is not letting my PC load YouTube thumbnails and other (seemingly random) CSS elements. The problem persists no matter if my connection is wired or wireless to the router, but goes away if I connect directly to the modem or another network. I've tried resetting the router, but that doesn't help either. The weirdest thing is that it only affects my PC. I'm just completely perplexed about what the cause is or what to do. Thx in advance.