FTP Connection Limit Issue – 530 Error

M

Mohan

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Joined
May 26, 2025
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I’m currently experiencing an issue while uploading files via FTP using FileZilla. When attempting to upload multiple files, I receive the following error message:


530 Sorry, the maximum number of connections (3) for your host are already connected
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I’ve already adjusted the transfer settings in FileZilla to limit the number of simultaneous transfers, but the issue persists when uploading larger batches of files.


Could you please advise if it’s possible to increase the maximum number of allowed connections for my host/IP? If not, is there an alternative solution or recommendation for handling larger file uploads efficiently within the current limit?


Your assistance would be greatly appreciated.
 
Mohan said:
possible to increase the maximum number of allowed connections for my host/IP?
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Most likely yes. You have to contact your host.
Or if you are the admin then check your ftp configuration file, you can raise the limit there.
 
Yes I admin, where is located for FTP configuration file. I check FTP management in control panel but don't show particular settings for raise limit. Could you please advise?
 
It depends if you use proftpd or pure-ftpd. Normally it's pure-ftpd.
In admin section, select the file EDITOR (so not file manager) and scroll down to pure-ftpd.conf.
(replace yourdomain.com with your own domain name ofcourse)

However, by default this is set to 15 connections, so this should be no issue. As far as I know proftpd.conf is set to 5 connections. You can however doublecheck this by using the file editor.

So you might want to check other things. Maybe your firewall or modsecurity or something else.
 
I recently purchased a 200 GB storage plan with InterServer. I am currently using FileZilla to upload and download files via FTP, using the server IP address and my FTP credentials.

However, I am unsure whether my hosting setup uses Pure-FTPd or ProFTPD, as I did not configure this myself. I would like to confirm the FTP server type and ensure that everything is correctly configured for reliable access.

Could you please check my account and help me resolve this? Also, kindly let me know who the point of contact is for technical support related to FTP services.
 
Mohan said:
Could you please check my account and help me resolve this?
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Looks your not the admin. If you're an admin then you have a Directadmin license account.
In your case, you have to contact Interserver for support as they are your host. We can not check hosting accounts. That's the reason why this forum is only for support to Directadmin license holders (so admins of servers).
DA servers are always by default setup with pure-ftpd. Contact the one who installed your server for support if you have a managed server.

So please contact Interserver for support. If they only provided a storage and no hosting and you try to upload to there, then it's not a Directadmin issue anyway, then the limit is set at their storage server, so also in that case you have to contact them.
 
You can see if its PureFTP or ProFTP in the Filezilla status (logging) window, when you connect to your server. On the first few lines it prints the server software as answer to the connection request. But as Richard said, for changing those limits you` d need access to the configuration files of the ftp-server, so you have to contact your provider.
 
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