There can be a number of reasons why broadband gets slower and slower, here are some of the possible factors:
1. Bandwidth limitation: Broadband services usually provide a certain amount of bandwidth, i.e. the maximum speed that can be used to transfer data. When multiple users connect and use network resources at the same time, the bandwidth may be shared, resulting in less bandwidth available to each user, thus affecting their Internet speed.
2. Network Congestion: Network congestion occurs when traffic in a network exceeds the capacity of the network infrastructure to handle it. This usually occurs during peak hours or in areas where the network is busy. Congestion causes delays and loss of packet transfers, which can reduce broadband speeds.
3. Network Quality Issues: Broadband connections can be affected by problems with the physical wiring or equipment, such as aging cables, faulty routers, or other hardware issues. These issues can cause signal degradation, interference or loss, which can reduce broadband speeds.
4. Improper router or device configuration: Routers or other network devices may be improperly configured, resulting in limited network speeds. For example, the use of an outdated router, misconfigured network parameters, or improper wireless channel settings may affect broadband speeds.
5. Network security software or malware: Certain security software or malware may run in the background, consuming network resources or affecting network connectivity. These programs may cause a decrease in broadband speeds because they take up a portion of the broadband bandwidth or increase network latency.
