# Trying to resolve ERR\_SSL\_PROTOCOL\_ERROR on localhost:3000 **URL:** \ **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:** 5\ **Page:** 1
**Author:** ![Bruce\_Robinson](https://sea2.discourse-cdn.com/flex020/user_avatar/community.kinsta.com/bruce_robinson/32/2024_2.png) [@Bruce\_Robinson](https://community.kinsta.com/u/Bruce_Robinson)\ **Post date:** [April 4, 2023, 4:54pm UTC](https://community.kinsta.com/t/trying-to-resolve-err-ssl-protocol-error-on-localhost-3000/2203/1 "2023-04-04T16:54:55Z")
Hello. Sorry for double-posting - I thought I found the solution and then it didn’t work. After way too many hours scouring the internet for solutions, I am begging for assistance. I would like to fix the ERR\_SSL\_PROTOCOL\_ERROR on localhost:3000 for my local grunt/gulp server, that started when I added “SSL and HTTPS” on one DevKinsta local site. I’m using a M1 Macbook Air. It appears with this error on Chrome & Brave, but on Safari it simply said Devkinsta stopped this instance. I just tried another solution, to edit out the old local devkinsta entries in /etc/hosts but now all browsers are stuck on loading localhost:3000 entirely. I deleted the old local devkinsta site, and nothing. I’m using BrowserSync with Grunt, and Browsersync says it’s proxying the new devkinsta site I want, but my browsers are still looking for an SSL cert apparently given the ERR\_SSL\_PROTOCOL\_ERROR. I went in keychain access to delete some, I tried a variety of solutions but didn’t keep a log. I’m not super knowledgeable on proxies & such - any help would be tremendously appreciated. ---
**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")
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 ---
**Author:** ![Bruce\_Robinson](https://sea2.discourse-cdn.com/flex020/user_avatar/community.kinsta.com/bruce_robinson/32/2024_2.png) [@Bruce\_Robinson](https://community.kinsta.com/u/Bruce_Robinson)\ **Post date:** [April 10, 2023, 2:03am UTC](https://community.kinsta.com/t/trying-to-resolve-err-ssl-protocol-error-on-localhost-3000/2203/4 "2023-04-10T02:03:22Z")
Well, none of them worked. I had deleted that login SSL cert so I can’t try moving it to system. I found a workaround, and while I’d like to fix this, I can’t spend any more time on it. Thank you very much for replying that day. Edit: oh, this is awkward. something did work. I didn’t exactly scientific-method it, but I think the issue was more about how I copied the wp theme folder from old site to new site with a new name, and updated gruntconfig & browsersync. Unrelated to Kinsta probably. Thanks again and sorry for wasting time! ---
**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 12, 2023, 2:11am UTC](https://community.kinsta.com/t/trying-to-resolve-err-ssl-protocol-error-on-localhost-3000/2203/5 "2023-04-12T02:11:07Z")
That’s fine Bruce! 😃 You’re most welcome! and glad to hear that something did finally work on your end! I will close this thread then! 👍 ---
**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 12, 2023, 2:11am UTC](https://community.kinsta.com/t/trying-to-resolve-err-ssl-protocol-error-on-localhost-3000/2203/6 "2023-04-12T02:11:14Z")