Are your ISP's actions legal?
Are your ISP's actions legal?
Connection_reset indicates the TCP connection was terminated during the session. If your ISP is blocking VPNs, you wouldn't have progressed far enough to complete the handshake. Numerous elements could be between you and the VPN service causing this problem. Firewall, CGNAT, proxy...
You seem to be questioning the situation. Is there a need to log in before connections are allowed? From a legal standpoint, the ISP isn't obligated to verify your identity. Unless regulated by Ofcom in the UK or similar bodies elsewhere, it's unlikely to be required. Each nation has its own communications authority, and the internet often shifts between being a telecom service (subject to restrictions) or a broadcast platform (requiring fees and content control). Depending on the current government, your country might be taking a strict approach, possibly intending to block certain activities.
Have you explored configuring a manual DNS? Consider using Cloudflare or Google (1.1.1.1 or 8.8.8.8). Your device's hotspot might be using a DNS that blocks those sites.