Unable to access a particular website

I have the problem where I cannot access one particular website on only one of my pc, the site is christies.com I can access it on my phone and on my laptop, but on my pc i cannot access even with different browsers I keep getting connection...

Apple is sending me a replacement iPad, and I can't access the FedEx website. Should I reset my browser or what should I do?

Been trying to go to rcmart.com but always getting ERR_CONNECTION_TIMED_OUT but when I try to enter it with https instead I get this. I've tried it on Edge as well and same thing happens. Tried pinging the site and result is here. I've also tried...

I am not sure whether this is the correct Forum thread to ask for help with my problem. I was logged into "www.buybackmytdi.com" . I was replying to a forum thread when I accidentally closed the website. I tried to re login and I received...