What is a common reason for slow file transfers over a network?

A common reason for slow file transfers over a network is low available bandwidth due to congestion. When multiple devices are transmitting data simultaneously or when a large amount of data is being sent over the network, the available bandwidth can become saturated. This leads to delays and slower transfer rates as packets of data compete for limited bandwidth. Network congestion can occur for various reasons, such as increased activity during peak hours or insufficient infrastructure to support the volume of traffic.

While high memory usage on the server, low disk space on the server, and faulty network cables can contribute to performance issues, they are not as directly linked to the immediate experience of slow file transfers as bandwidth congestion. High memory usage might slow down the server's overall processing capabilities, but it does not specifically target the transfer speed of files across the network. Low disk space can affect the server's ability to write new data but does not inherently slow down data transfer rates from one point in the network to another. Faulty network cables can result in data loss or disconnection but are usually more likely to cause errors or transmission failures rather than a slow transfer speed across the network.