How to solve TLS error in Filezilla FTP client?

linux windows ftp sftp tls

45,487

Status:        Connecting to 91.109.7.88:21...
Status:        Connection established, initializing TLS...
Error:        GnuTLS error -15: An unexpected TLS packet was received.

There is probably a problem with your settings, i.e. how you connect to the server.

It looks you are trying to do implicit TLS, where TLS gets used directly after the TCP connection got established. But this is wrong when using the standard FTP port 21, because in this case explicit TLS is expected, where it first creates a plain TCP connection and then upgrades this connection to TLS after issuing a AUTH TLS command.

45,487

Booth

Updated on September 18, 2022

Comments

Booth over 1 year
When i try to connect a site files by Filezilla FTP client, i get the following error
```
Status:        Connecting to 91.109.7.88:21...
Status:        Connection established, initializing TLS...
Error:        GnuTLS error -15: An unexpected TLS packet was received.
Error:        Could not connect to server
```
How to solve this error?
- netawater about 7 years
  
  maybe a firewall problem, try to use a proxy.
- mariotomo over 4 years
  
  did you solve the problem? maybe this one does: askubuntu.com/questions/637810/…
Booth almost 9 years

So you told that i have to use plain FTP.right?
Steffen Ullrich almost 9 years

Filezilla uses the FTPES:// schema for this case, see wiki.filezilla-project.org/SSL/TLS#Explicit_vs_Implicit_FTPS