A server loop occurs when a process or script on your hosting server runs continuously without reaching a termination point. This creates an infinite cycle that consumes CPU, memory, and bandwidth resources, potentially slowing down or crashing your entire website and affecting other sites on a shared server.

Common causes include:

• Faulty code in scripts (like PHP, Python, or Perl) with incorrect loop conditions.
• Misconfigured cron jobs that trigger tasks too frequently or call themselves.
• Redirect errors where two pages point to each other endlessly.

To identify and resolve a loop:

1. Check your server's error logs and resource usage in your hosting control panel (e.g., cPanel).
2. Review recent code changes or plugin installations that might have introduced the loop.
3. Disable suspicious scripts or cron jobs temporarily to see if resource usage normalizes.
4. For redirect loops, clear your browser and website cache, and verify your .htaccess file.

If you cannot locate the source, contact your hosting support immediately. They can help terminate the runaway process and prevent service suspension due to excessive resource usage. Regularly monitoring your site's performance is key to catching loops early.