Fixed: TeamSpeak File Transfer Timeout Error - Guide
The "File Transfer Failed" error is a common frustration for TeamSpeak dedicated server owners. It usually prevents players from uploading avatars, custom channel icons, or sharing files in the file browser. This is almost exclusively a Port 30033 (TCP) configuration issue. This guide covers how to fix it for both TS3 and TS6.
๐ Port 30033 (TCP)
While voice uses UDP (9987), the file transfer system uses a stateful TCP connection on 30033. If this port is closed, uploads will hang at 0%.
๐ Quota Limits
Even if the port is open, TeamSpeak has a default "Total File Transfer Quota." If your server reaches this, all new uploads are blocked.
How to Fix File Transfer Errors
1. Open TCP Port 30033
Ensure your server host or your local Linux firewall is allowing incoming TCP traffic. For ufw (Ubuntu/Debian), run:
sudo ufw allow 30033/tcp
sudo ufw reload2. Check 'filetransfer_ip' Binding
If your server has multiple IP addresses, TeamSpeak might be listening on the wrong one. Edit your ts3server.ini and ensure the file transfer IP is set to your public address (or 0.0.0.0 to listen on all interfaces):
filetransfer_ip=0.0.0.0
filetransfer_port=300333. Adjust Global Quotas
If you receive Transfer limit reached, you must increase the virtual server's upload/download limits. Log in via Query (YaTQA) or an Admin Client and edit the Server Settings:
- Upload Quota (MB): Set to -1 (Unlimited) or a higher value like 5000 (5GB).
- Download Quota (MB): Set to -1 or a higher value.
Note for TeamSpeak 6: TS6 uses a more efficient storage backend, but still relies on the same port logic. If your community members cannot see icons in TS6, ensure your files/ directory on the server has 755 permissions.
High-Performance Storage
Loading dozens of custom icons during a busy evening requires fast disk I/O. At Supercraft, our TeamSpeak instances run on NVMe arrays to ensure that your server icons and avatars load instantly for every user.