'Why do I get "Connection was refused by the server" when using Thunder Client on VS Code?

I'm using Thunder Client on Visual Studio Code, and tried making a request to "localhost:3000".

It gave me an error

Connection was refused by the server

Any fix to this?

Solution 1:^[1]

Please use your IP address instead of localhost: ipaddress:port.

Then, it might work. Eg. 192.168.0.1:3000

For more information see our support page comment

But instead of using localhost:9000 I did use the actual IP set for the computer… 198.168.0.189:9000 for example, then it works.

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Solution	Source
Solution 1	Gino Mempin