Connect to a VPN and problem solved. The simplest way to do this is:
1. Download and install the Opera GX browser: https://www.opera.com/gx
2. Enable the Opera VPN addon: https://addons.opera.com/en/extensio...ils/opera-vpn/
3. Activate the VPN via the VPN button on your browser
4. Connect to game as normal, works for both Unity and Client.
Edit 1: Shorter URL for sharing with fellow Guildies: tinyurl.com/TSO-HTTP500-Fix
Edit 2: When connecting to a VPN select a country outside the UK.
Edit 3: Your browser should have its own VPN option so search for that first or try Opera as above.
Edit 4: You can also try and use your browsers "incognito" or "private" tab option.