protractor: "Port 5858 is already in use" when using browser.pause more then once

I have the line browser.pause(); in a beforeEach-function in my Protractor spec and I thought it would act as a breakpoint for me to pause before every it and check out the browser before continuing with the command d to continue to the next debugger statement (which should be the beforeEach again). But when Protractor reach beforeEach for the second time I get the error:

Port 5858 is already in use. Please specify another port to debug.
[launcher] Process exited with error code 1

Isn’t this how you’re supposed to use the pause function? What’s purpose of the d-command if you can’t use browser.pause() multiple times in the code?