Internet Support


What do the results of the speed test mean?

Packets and Packet Loss


A packet is an individual piece of information transmitted over a network. Each packet contains data and delivery information. Packets are combined at their destination to display websites and relay audio conversations in telephone calls.

Packet loss occurs when packets leave their source but do not arrive at their destination. The transmitting system is then asked to resend the missing packet(s). The cause of packet loss could be a poor signal to a cable modem or other interference on the network connection.

What action can I take? Check for any obvious coaxial cable damage, and confirm tight coaxial cable connections.

Jitter


Measured in milliseconds, jitter is the variation in latency (or travel time) for information passing through a network. Jitter can be caused by poor signal to a cable modem and other interference on the network connection.

What action can I take? Check for any obvious coaxial cable damage, and confirm tight coaxial cable connections.

Latency


Measured in milliseconds, latency is the time it takes a packet of information to travel from its source to its destination. High latency can be caused by a number of factors, such as distance from servers, slow network routers, heavy traffic, a poor signal to a cable modem and other interference on the network connection.

What action can I take? Check for any obvious coaxial cable damage, and confirm tight coaxial cable connections.

Firewall Check


The firewall check examines UDP (user datagram protocol) and TCP (transmission control protocol) connections. Many online services, including websites, streaming applications and voice over IP (VoIP), use these methods.

  • In the outgoing test (To Server), UDP and TCP (transmission control protocol) should appear as Open, indicating you have outgoing access.
  • For the incoming test (To Client), UDP and TCP should appear as Closed on most connections, indicating you are secure from incoming data requests you have not requested.

What action can I take? If your incoming To Client test displays as Open, you may want to confirm proper configuration of your firewall software or hardware.