

6·
6 hours agoMy VPN , Private Internet Access, uses its own DNS server, which translates urls to actual IP addresses. Your phone may be using your mobile provider’s DNS server, which may be blocking access to that IP adresss, while your VPN’s DNS does not block it. Your desktop system is likely using another DNS server, setup by your internet service provider.
So, what to do it? I think you have found the best solution; use your VPN on mobile all the time. This means you will do more captchas, but you will have more access to sites.