Troubleshooting

When something is not working: checks and fixes.

127 guides · page 6 of 7

  • How to fix Cloudflare Error 522: Connection timed out

    Cloudflare Error 522 means your origin server did not answer Cloudflare in time. Learn the causes, from overloaded servers to dropped packets, and how to fix error 522.

    IntermediatecPanel hosting2 min read

  • How to fix Cloudflare Error 523: Origin is unreachable

    Cloudflare Error 523 means Cloudflare cannot find a route to your origin server. Usually the DNS record points to a wrong or old IP. Here is how to find and fix it.

    IntermediatecPanel hosting2 min read

  • How to fix Cloudflare Error 524: A timeout occurred

    Cloudflare Error 524 means your server accepted the connection but took longer than 100 seconds to respond. Learn how to find slow scripts and fix error 524.

    IntermediatecPanel hosting2 min read

  • How to fix ERR_CONNECTION_REFUSED

    ERR_CONNECTION_REFUSED means your browser reached the server address but nothing accepted the connection. Learn how to tell a local problem from a server one and fix it.

    BeginnercPanel hosting2 min read

  • How to fix ERR_CONNECTION_RESET

    ERR_CONNECTION_RESET means the connection was cut off mid-way. Find out how firewalls, proxies, MTU problems and server limits cause it, and the fixes for visitors and site owners.

    BeginnercPanel hosting2 min read

  • How to fix ERR_CONNECTION_TIMED_OUT

    ERR_CONNECTION_TIMED_OUT means your browser got no answer from the server at all. Learn how firewall blocks, wrong DNS, overloaded servers and local networks cause it.

    BeginnercPanel hosting2 min read

  • How to fix ERR_EMPTY_RESPONSE

    ERR_EMPTY_RESPONSE means the server closed the connection without sending any data. Learn the causes, from PHP crashes and security rules to local network issues, and how to fix it.

    IntermediatecPanel hosting2 min read

  • How to fix FTP "530 Login authentication failed"

    FileZilla shows 530 Login authentication failed or Login incorrect? Learn the correct cPanel FTP username format, how to reset the password and check IP blocks and TLS.

    BeginnercPanel hosting2 min read

  • How to make.htaccess rewrites work in OpenLiteSpeed

    Fix.htaccess rewrites in OpenLiteSpeed - turn on rewrite and Auto Load from.htaccess, understand why edits need a restart and which directives are supported, and fix 404 errors on WordPress permalinks.

    IntermediateLinux server5 min read

  • How to read server logs to troubleshoot your website

    Where to find web, PHP, mail, database and system logs on cPanel hosting and a Linux VPS, and how to search them quickly to find the cause of an error.

    IntermediatecPanel hosting and Linux VPS2 min read

  • How to test whether RDP port 3389 is reachable

    Check in under a minute whether your server answers on RDP port 3389, from Windows, Mac or Linux, and learn what each result means and what to do next.

    BeginnerWindows server5 min read

  • How to write a support ticket that gets solved fast

    Write support tickets that get solved on the first reply by including the service, IP address, exact error text, steps already tried and screenshots, without ever pasting passwords.

    Beginner4 min read

  • HTTP status codes explained: what each one means on a web server

    A practical reference to HTTP status codes from 1xx to 5xx: what triggers each one on Apache, Nginx and LiteSpeed, how they affect SEO and caching, and where to look when you see them.

    BeginnerAll websites3 min read

  • Is your ISP or router blocking port 3389? How to tell

    Work out whether your internet provider, home router, parental controls or a proxy is blocking RDP port 3389, and collect the details support needs to help.

    IntermediateWindows server5 min read

  • KVM and libvirt common errors and how to fix them

    Fix the most common KVM and libvirt errors: /dev/kvm missing, permission denied on images, network default not active, domain already exists, failed to connect to the hypervisor and more.

    IntermediateKVM hosts2 min read

  • Locked out by your firewall? How to get back into your VPS

    If a firewall rule blocked SSH, you can still reach your server through the browser console in your VPS provider's control panel. Disable the firewall, fix the rule and turn it back on safely.

    BeginnerLinux server5 min read

  • Port open in the firewall but still unreachable: how to fix it

    You allowed a port in the firewall but connections still fail. Work through each layer, from the listening address to the server and client networks, to find the real block.

    Intermediate5 min read

  • Read the error log and raw access logs in cPanel

    Find the cause of website errors with cPanel's Errors tool, PHP error_log files and Raw Access logs, and learn how to read common log lines.

    IntermediatecPanel hosting2 min read

  • Restore Remote Desktop to port 3389 after changing it

    Changed the RDP port and now you cannot connect? Use the browser console to set Remote Desktop back to port 3389, re-add the firewall rule and get back in.

    IntermediateWindows server5 min read

  • Server not responding? First checks before contacting support

    A short checklist for an unreachable server: check its status in your VPS provider's control panel, test the network and port, look through the browser console, restart if needed and test from another network before opening a ticket.

    Beginner5 min read

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