DNS → TCP → Auth → ListFTP / FTPS / SFTPShareable debug outputNo credentials stored

Find exactly why FTP, FTPS, or SFTP is failing.

Run a connection check from the browser or copy the CLI command. FTPMonitor breaks the problem into DNS, TCP, authentication, TLS, and directory listing so you stop guessing.

npx ftpmonitor check --protocol sftp --host example.com --port 22

Quick browser check works without credentials.Full auth/list test available below.

Fix FTP 530 login incorrect

Example output

Safe to share

FTPMonitor Check
Host: example.com
Protocol: SFTP  Port: 22  Path: .

DNS   ✅ 9ms      DNS resolved to 104.18.27.120
TCP   ✅ 14ms     TCP connection succeeded
AUTH  ✅ 83ms     Authenticated successfully
LIST  ❌ 41ms     Permission denied

Next step:
https://ftpmonitor.com/guides/sftp-directory-listing-failed

Top issue

FTP 530 Login incorrect

Wrong credentials, account restrictions, FTPS requirements, or IP allowlists.

Read fix →

FTP

Connection reset by peer

The server or a firewall closed the connection unexpectedly.

Read fix →

FTPS

FTPS certificate error

Expired certs, hostname mismatch, self-signed certs, or missing trust chain.

Read fix →

Network

TCP timeout / firewall

Port blocked, private network, missing allowlist, or routing problem.

Read fix →

1) Test the endpoint

Start with host and protocol, then add credentials when you need a full auth and directory listing check.

2) See the failed step

Instead of a vague FTP error, get the exact layer: DNS, TCP, auth, TLS, or list permissions.

3) Send the fix

Copy clean output for Slack, support tickets, hosting vendors, or incident notes.

Run a full health check

Add credentials only when you need FTPMonitor to test authentication and directory listing. Credentials are used for this request only and are not stored.

Protocol

Host

Port

Username

Authentication

Password

Show

Path (optional)

Example: . or /incoming

No credentials are included in copied debug output.

FTPMonitor Help

Need us to help fix it?

Choose the level of help that matches the urgency. Never send passwords, private keys, or other secrets.

Fix Report

$49

A written diagnosis and recommended fix for one FTP, FTPS, or SFTP issue.

Written diagnosis
Recommended fix steps
Best for non-urgent issues

Recommended

Same-Day Help

$149

Priority troubleshooting for one active issue, with a clear same-day diagnosis and action plan.

Priority troubleshooting
Same-day diagnosis and action plan
Best for active business problems

Live Fix Call

$299

Live troubleshooting help for an urgent or unusually complex FTP, FTPS, or SFTP problem.

Live troubleshooting session
Best for urgent or complex failures
Scheduling coordinated after checkout

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