I had a mainstream company website start some of this months ago and now I seem to be getting more and more similar connection problems for other sites. My pc works just fine on nearly every other site so I just don't see it as my pc. I asked my ip and although I question whether they will help much but they did say nothing from their side. Yes I am up to date on ffox and OS. Clearing cookies does nothing. Some sites just say access denied, some will just never load or have some bs 'oops' or 'something went wrong' message. Chrome seems to mostly work but it may be goofy getting the sites working. These all used to work fine before. It does have the same or similar problem using other pc's on the same network. I can find nothing in my modem/router that is blocking anything. How do I find out what is wrong?