How do I troubleshoot a connection failure?

Follow these steps:

Verify Protocol-Port Matching:
- HTTPS: Port 65535
- HTTP: Port 65534
- SOCKS5: Port 65533
Check Credentials:
- Format: username:password
- Look for typos or spaces
- Verify in Profile section
Test Configuration:

curl -x "https://network.joinmassive.com:65535" -U "username:password" http://ip-api.com