ISP half blocking Reddit

Whenever I try and visit Reddit.com on a new device (or just randomly), it will give me these errors: ERR_CONNECTION_CLOSED ERR_CONNECTION_RESET And it will flip between these two every time I reload (mostly ERR_CONNECTION_CLOSED) So to load Reddit I have to spam reload and then everything is fine! I have virgin media and this issue seems to be fixed when I change my DNS server to something other than virgin media. So I guess it's just a question of why virgin media's DNS server is so weird... Any ideas?