The server at port 3000 is not responding

[antwal]

Hi,

I've been trying for a couple of days without being able to solve the problem;

I have tried with both existing and new projects but the server is not responding on port 3000 instead browsersync works perfectly

• on docker container not working only port 3000

node version 12.20.1
yarn version 1.22.5
composer version 2.0.8
php version 7.3.17

• on mac host not working only port 3000

node version 12.13.1
yarn version 1.22.5
composer version 1.7.2
php version 7.3.8

i have tried to change port with another but i have same problem, it stay stuck on loading....

there is any way to understand which is the problem?