# Trying to resolve ERR\_SSL\_PROTOCOL\_ERROR on localhost:3000

**URL:** <https://community.kinsta.com/t/trying-to-resolve-err-ssl-protocol-error-on-localhost-3000/2203>\
**Category:** Application Support\
**Created:** [April 4, 2023, 4:54pm UTC](https://community.kinsta.com/t/trying-to-resolve-err-ssl-protocol-error-on-localhost-3000/2203 "2023-04-04T16:54:55Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![Agus](https://sea2.discourse-cdn.com/flex020/user_avatar/community.kinsta.com/agus/32/1515_2.png) [@Agus](https://community.kinsta.com/u/Agus)\
**Post date:** [April 5, 2023, 1:55am UTC](https://community.kinsta.com/t/trying-to-resolve-err-ssl-protocol-error-on-localhost-3000/2203/3 "2023-04-05T01:55:00Z")

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Hello @Bruce_Robinson 👋

First of all, I have not heard about/used grunt/gulp server and don’t have any experiences with it, and am not a Mac user either. But the SSL/HTTPS error issue (on Mac) you reported sounds familiar to me.  
Maybe you may want to check the other [thread](https://community.kinsta.com/t/https-not-working-invalid-certificate-macos/81/14) and this [thread](https://community.kinsta.com/t/ssl-update-failed/1893/5), and see if that solution will help to solve that SSL/HTTPS error issue on your end?

Last week or so, my colleague also added the step-by-step on how to do that in the other [thread here](https://community.kinsta.com/t/all-websites-get-connection-refused-status-and-url-contains-port-number/2168/12).

Please let us know with the results.

Cheers,  
Agus

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