What are the reasons for JMeter remote connection errors?

There could be several reasons for the error in remote connection with JMeter.

1. Firewall settings: It could be that the firewall is blocking communication between the JMeter client and the remote server, so you may need to open the port or add an exception rule.
2. There may be issues with the internet connection, which could be unstable or have high latency, causing the JMeter client to be unable to connect to the remote server.
3. The JMeter versions do not match: this may be because the JMeter client and remote server are using different versions, so ensure that both versions are either the same or compatible.
4. Remote server configuration issue: It may be because the remote server has not correctly configured JMeter’s remote connection feature, make sure the remote server has properly enabled remote testing functionality.
5. Authentication issue: It might be because the JMeter client is unable to pass the remote server’s authentication mechanism, so make sure that the JMeter client has the correct authentication credentials.
6. Hardware or resource limitation: It could be due to the limited hardware resources of the remote server, which may not be able to handle a large volume of JMeter requests. Adjusting the server configuration or adding resources may be necessary.

The above are just some possible reasons, specific issues need to be analyzed and investigated based on the specific error message.