# What Should I Do If the Connection Between the Client and the Server Times Out When I Upload a File Using FTP?

#### Symptom

When I attempted to access the server from the client to upload a file using FTP, the connection timed out.

#### Constraints

The operations described in this section apply to FTP on local Windows only.

#### Possible Causes

Data is intercepted by the firewall or security group on the server.

#### Solution

1. Check the firewall settings on the server.
2. Disable the firewall or add desired rules to the security group.

Parent topic: File Upload/Data Transfer