Connection Reset by Peer (Harbor): Causes and Solutions

'Connection reset by peer' is a frequent network error message indicating that one side of a network connection, often the server, abruptly closed the connection. This typically occurs in the following situations:

1. A program on the peer server crashes or restarts, leading to connection closure.
2. A firewall or network device on the peer server malfunctions during the connection, resulting in its termination.
3. Network socket errors on the peer server lead to connection closure.
4. The application on the peer server actively closes the connection, considering it outdated or unnecessary.

This error is often temporary and can be resolved by reattempting the connection. If the error persists, you may need to examine server and network device configurations and status to pinpoint the specific cause and take appropriate action.