Can't connect to localhost after Sequoia 15.4.1 upgrade

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Level 1

4 points

Can't connect to localhost after Sequoia 15.4.1 upgrade

I run a docker container serving http://localhost:5678 that was working fine in Chrome before I upgraded to Sequoia 15.4.1. I now get "Site can't be reached - localhost refused to connect". I've tried restarting everything several times but can't find why this is now happening and how to fix it.

I can ping localhost in a terminal window ok. Container status in Docker reports no problems. I installed a completely standard Postgress container running on port 3000, same problem.

I have a brand new MacBook Air 15". Firewall is turned off. My /etc/hosts file:

127.0.0.1	localhost

255.255.255.255	broadcasthost

::1             localhost

Posted on May 9, 2025 3:11 AM

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Answer 1

rsnijder Author

Level 1

4 points

May 9, 2025 8:59 AM in response to rsnijder

Found it. Problem was with Docker. Had nothing to do with the Sequoia 15.4.1 upgrade

Restarting the container from the Docker Desktop UI worked technically and I could see the correct port using "docker ps" but for some reason the container couldn't be reached on that port. Problem fixed by starting the container from the command line. Really bloody confusing.

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Answer 2

BDAqua

Level 10

250,259 points

May 9, 2025 8:58 AM in response to rsnijder

Good work my friend, thanks.

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